Container combination featuring Laguna® Sky Blue lobelia.Photo by: Proven Winners. Cascading varieties make attractive spillers in hanging baskets and window boxes. Find a Garden Center that carries Proven Winners plants & products. It is a woodland plant that prefers part-sun and even moisture. How to Grow Blue Lobelia. When using them in mixed container combinations, be sure to team them up with other moisture-loving shade-tolerant annuals and perennials, such as violas, impatiens, and sweet alyssum. Water the potting soil. Unlike a most perennials, Great Blue Lobelia will bloom the first year. Its semitrailing, mounding habit is a great addition to containers and hanging baskets. Flower Garden Design Though planting in spring guarantees enough time for plants to develop a healthy root system by the following winter, lobelia planted during late summer … It is, in fact, related to the well-known red Cardinal Flower. Install several lobelia plants along the edge of a mixed container garden, such as a whiskey barrel, and display it on your patio. Blue lobelia grows as a wildflower and doesn't usually require fertilizer, preferring organic nutrients from compost. I’ve never seen it for sale in big box stores. These plants are easy to grow and grow … Lobelia ×speciosa are popular garden hybrids (usually of L. cardinalis and L. siphilitica) with flowers in shades of blue, … Although there are hundreds of lobelia varieties, these are the types most commonly grown in the home garden: Due to serious toxic effects, L. inflata is not commonly grown as a garden plant. Grow Lobelia erinus in a cool spot in moist soil in partial shade. Laguna varieties don't like wet feet, so be sure to let the soil dry out before watering. This summertime bloomer will continue to produce flowers on up through the first frost. They attract butterflies and hummingbirds. How to Grow Lobelia. erinus. Container Gardening Ideas. Harvesting. They grow along streambanks which are wet year-round. All forms flower constantly throughout the summer until the first frosts. From tools to furniture, these garden products are sure to delight. Lanceolate serrated leaves alternate along the stem, culminating into tiny bracts amidst the bell shaped blooms. Harvesting. A lightly shaded position, or one out of strong, direct sunshine, will ensure plants go on flowering profusely for a long time – especially during very hot summers. Lobelia siphilitica. Can be a little difficult to grow from seed though, so most gardeners buy in 6 packs from the local garden center. It’s also a wetland native that flourishes in moist garden soils. Light aids germination of seeds. Pinch back newly emerging stems when they are about six inches long. Lobelia erinus doesn’t like dammed-up water at all. Interesting Notes: Lobelia siphilitica is a clump forming perennial wildflower with toothed lance shaped leaves. Propagation by seed: Plant Lobelia seeds indoors early in the spring, or sow directly into the moist soil outdoors after all danger of frost has passed. The blooms entice bees, hummingbirds and butterflies. Success! These two little plants grow only about 6 inches tall. This best seller blooms all season and requires little to no maintenance. They are a must-have for my spring containers, and anywhere else in my garden where I want to add a blast of blue. They do not attract deer. L. siphilitica.. Great blue lobelia (L. siphilitica), or blue cardinal flower, is another perennial wildflower with long-lasting, tall stems that feature bright blue flowers.Propagation. This radical pruning will regenerate new growth, and by the time the cooler weather of fall arrives, your plants should be in full bloom again. In hotter regions, less sun is preferred to keep them blooming longer. In early summer, pinch back plants to stimulate the growth of new blossom-bearing branches. Some of these even include biennial species. Great Blue Lobelia, the blue counterpart of the Cardinal Flower, prefers moist soils and can be found naturally in open, moist shaded woodlands and alongside lakes and streams. Troubleshooting. Surface sow the seed. (30-45 cm), this clump-forming Lobelia thrives in rich , humusy , medium to wet soils in full sun to part shade . This compact plant packs a big punch with its deep cobalt-blue flowers and glossy bronzed foliage. Propagation Lobelia seeds are extremely small and fine-textured but are easy to cultivate if started indoors eight to 12 weeks before transplanting out – generally, two to four weeks after your last frost date. Great Blue Lobelia (Lobelia siphilitica) or Blue Cardinal Flower, Lobelia siphilitica, typically grows in moist to wet locations along streams, sloughs, springs, swamps, meadows and in low wooded areas. You may add a bright hue to your garden by growing these plants. Troubleshooting. The stalks are cut below the capsules, and placed upside down in a per sack. Pruning Edging and Trailing Lobelia. Plant in full sun to part shade. Because of that, you can space them 1-2′ apart (30-60 cm). Troubleshooting. How to grow Great Blue Lobelia. Growing Great Blue Lobelia from seed is easy. Laguna® Sky Blue — Buy now from Proven WinnersL. Sow them in fine grain pit in a flat box, keeping the seeds moist and under lights. Lobelia is a great cool-season flower for adding vivid blue to the garden. Usually it will just form a rosette of leaves the first year and bloom the second year, but it can bloom first year from seeds if you get an early start. The seeds need light to germinate. Lobelia erinus is a trailing species with masses of purple or blue flowers. How to Grow Great Blue Lobelia From Seed Growing Great Blue Lobelia from seed is easy. The color of flowers depends on a grade and can be purple, violet, white, dark blue or blue. The stems are 2-3 ft. tall and clustered with deep throated flowers that hummingbirds love. Plant in a potting mix rich in organic matter. Longer lived than the Cardinal Flower it blooms in the late summer producing spikes of deep blue … I've owned 2 homes, both of which had shady yards so I've become rather knowledgeable about shade gardening. Hummingbirds love the bright red flowers. Photo by: John Richmond / Alamy Stock Photo. Sign up for weekly gardening inspiration and design tips. There are more than 400 species that include upright and mounding lobelias, annuals, half-hardy annuals, perennials, and even shrubs and aquatic plants. Plants that do not develop their rosette of leaves will not survive the winter. My guess would be it was courtesy of the birds who tend to excrete seeds all over my yard. Rather uncommon, this exotic and tropical-looking variety has trumpet-shaped salmon-red flowers with bright yellow and orange throats that hang in clusters on thin red stems. Answer: It would be difficult to overwinter these plants indoors because they have a very specific growing environment. If you typically mulch your perennial beds to prevent frost heaving and root damage, use a light layer of mulch that won’t completely cover the basal leaves. Another easy way to propagate your plant is by cuttings. Great Blue Lobelia is easier to grow than the red-flowered type (cardinal flower) and can even be grown in pots. Over-crowding causes them to grow poorly and encourages disease. Varies by species. And although cobalt blue may be their signature hue, you’ll also find lobelia flowers in scarlet red, lilac, rose, and vibrant tropical colors. Great Blue Lobelia in containers with Caladiums. Don't transplant seedlings outdoors until a few weeks after the last frost date. Lobelia seeds can be sown from January to April to give you a summer display. This herbaceous plant is easy to grow from seed and frequently self-sows. So dig in lots of bulky organic matter, such as compost, to improve the moisture holding – especially on free-draining soils. The capsules can be collected in autumn, usually October. General: Great blue lobelia is comparatively easy to grow. Butterflies; Hummingbirds; Attributes. Generally growing 2-3 ft. tall (60-90 cm) and spreading 12-18 in. Here the groundwork of a good drainage pays off (also applies to other flowers). It grows to about 1-3 ft high. How To Grow Lobelia Flowers From Seeds # 1 | Direct sow your lobelia seeds in late fall. Growing lobelia is an asset to the garden. Join us as we look at at one of the "great" native plants of … Laguna® Dark Blue — Buy now from Proven WinnersL. The stalks are cut below the capsules, and placed upside down in a per sack. Water regularly to keep the soil evenly moist, especially during hot, dry weather. Techno® Blue is covered in intense, cobalt blue flowers. Do not cover. document.write(theDate.getFullYear()) Bred to be more heat tolerant. They can also be grown in containers set in a tray of water on a patio or deck. Pinching is an early spring task. Quite an architectural plant which adds vertical interest to the landscape! For annuals, fertilize more frequently or apply a continuous-release fertilizer for flowering plants to sustain them throughout the growing season. Suitable for any garden type. Gray ... All ratings refer to the UK growing conditions unless otherwise stated. You can also pinch back plants at any time if you prefer bushier growth. In the spring, you will rewarded with seedlings. Plant Type: Herbaceous Perennials. How To Grow Great Blue Lobelia From Seeds. They survive winters in U.S. Department of Agriculture plant hardiness zones 10 and 11, but they are usually grown as spring annuals because they fade in the summer heat. Most annuals will bloom from spring through fall, with a lull during midsummer. Compost also helps retain soil moisture. When the natural rain doesn’t take the task of watering the garden, you should water your flower bed regularly. Germination will occur in 14 to 30 days. Blue lobelias are among this elite group, which also includes blue sea holly (Eryngium planum), Siberian larkspur (Delphinium grandiflorum), Lily of the Nile (Agapanthus africanus), Texas bluebonnets (Lupinus texensis), blue daisy (Felicia amelloides), and blue hydrangeas. CareProvide full sun to partial shade and fertile, moist soil. These plants make great additions in borders, along creeks or ponds, as ground covers, or in containers—especially hanging baskets. Like its cousin the Cardinal Flower, the Great Blue Lobelia is native to North America. Harvesting. The trailing growth habit of the lobelia allows it to cascade down the sides attractively. Allowing your plants to self-sow is the easiest way to create new plants. The truly beautiful lobelia will shine in any flower garden. Lobelia cardinaliscan be grown in sun or, preferably, partial shade. A very pretty, easy to grow plant. This flower since 1861 is cultivated. Trailing forms are popular in hanging baskets, window boxes and containers. This long-blooming hybrid bears flowers on tall, upright stalks and thrives in moist conditions. Discover the right plants for your garden. Season of Interest: Late (July - frost) Main Color: Blue. How to Grow Lobelia Plants. Great Blue Lobelia: You Can Grow That! How to grow lobelia Cultivation Bedding lobelia. Plant in full sun to part shade. Keep weeds under control during the lobelia growing season. Lobelia erinus ‚Techno Up‘ Blue, Garden lobelia Watering. Planting and Growing Lobelia Plant in full sun or partial shade in deep, fertile, moist soil (do not allow soil to dry out). Gently firm the compost down after you sprinkled the seeds. Lobelias are considered to be easy to grow plants. Lobelia Plant: Tips To Grow And Care For Annual and Perennial Lobelias. They are perfect for garden borders, outdoor containers, hanging baskets, as ground cover, etc. Flowers that work best in hanging baskets either drape or are very short. Once, home, the bag is opened so that the capsules are exposed to the air for a few days. Yet are you aware that up on the slopes of Mount Kilimanjaro there are lobelias that grow 20ft tall, their spires of blue and green flowers rising from great rosettes of leaves of tropical wonder. Annual lobelia will grow nearly anywhere. The tubular blue flowers appear in late summer through early fall, August to October. Be sure to sow seeds on top of the soil and leave uncovered so that they can germinate properly. erinus. Height: 1-4 ft Spread: 12-18 in Spacing: 18-24 in USDA Hardiness Zone: 4-8 Bloom Color: Blue, Violet Lobelia siphilitica Characteristics. Annual bedding lobelias will grow in both full sun or partial shade. Photo by: Age Fotostock / Alamy Stock Photo. Perennial lobelias are useful for difficult wet locations in full sun or partial shade. Lobelia can also be grown from seeds, and clumps of the perennial can be divided to create new plants. They are perfect for garden borders, outdoor containers, hanging baskets, as ground cover, etc. How To Grow Lobelia. Blue White Foliage. Use your garden shears to cut several 4 to 5-inch pieces of stem growth from the donor Lobelia plant. Perennial varieties can usually get by with a yearly application of fertilizer or compost in the spring. A rare true blue flower with improved heat tolerance. They also do well in my backyard which is shady and on the edge of a wetlands area so the soil is always wet. Germination takes anywhere from 10 to 30 days at 60-65F/15-18C. This plant's genus name of Lobelia honors Flemish botanist Mathias de Lobel, who studied medicinal uses for plants. It needs a good, fertil… Rejuvenate plants in midsummer by cutting back, to maintain bushy growth and encourage repeat flowering. Plant your lobelia seeds on the surface of the soil since these seeds need light to germinate. Sow singly or in small groups spaced around half an inch apart in trays of good seed compost. Remove the leaves from the bottom of the cuttings and dip the cut ends into rooting hormone. Flowers of this genus all have two narrow lobes or “ears” above, with three wider lobes forming a lip below. As native plants Lobelia Great Blue grow easily and are adaptable to moist shady areas. Shake the bag to release the seeds. The great Blue variety can grow up to three feet in height and nearly a foot wide. For late summer blue blooms these are the ones to choose. Bred to be more heat tolerant than other varieties. All Rights Reserved. A North American native that is perfect for the late summer garden, Lobelia siphilitica (Great Blue Lobelia) is a popular, upright perennial which produces long-lasting spikes of bright blue flowers atop a finely-toothed, lance-shaped foliage from late summer to mid fall. They also add height to cut arrangements. Taking Care of Lobelia These plants can be short-lived, so regularly rejuvinate your stock by division or cuttings. Instead of deadheading the flowers to make the plants appear neater, allow some to go to seed. The Great Blue Lobelia will readily reseed itself in your garden so you will always have plenty of plants. Very! Lobelias are slow to establish and most gardeners grow them from nursery transplants. Lobelia is a fairly easy plant to grow from seed. Great blue lobelia (L. siphilitica), or blue cardinal flower, is another perennial wildflower with long-lasting, tall stems that feature bright blue flowers. If perennials are covered with heavy mulch over the winter, the roots can rot, especially in warmer southern climates. In fact, lobelia even loves downright wet conditions, making it a top choice for bog gardens. General: Great blue lobelia is comparatively easy to grow. Noteworthy CharacteristicsIntense blue flowers; heat tolerant. Pinch newly planted lobelia when they recover from transplanting. Both the Cardinal Flower and the Great Blue Lobelia are unsuitable for hanging baskets because of their size and growth habit. If growing by seed indoors, start plants 10 weeks prior to last frost date for your area. plants) Sun Exposure Full Sun, Medium Sun/Average … Fall Color: Hardy From Zone: Hardy To Zone: ? Great Blue Lobelia are quite tall, growing 2 to 3 feet in height. Usually grown as an annual; perennial in Zones 9-11. Some varieties bloom white or pink. Hummingbird havens, garden borders and groundcovers, rain gardens, woodland gardens, spillers in container combinations, pollinator gardens. You can plant your seedlings outdoors after all danger of frost spacing them 8 to 12 inches apart. Spring through fall; nearly year round in mild climates. She has been associated with Rutgers Gardens for over a decade. Caren White is a Master Gardener and instructor at Home Gardeners School. Upright varieties work perfectly as a centerpiece (or ‘thriller’) in containers or along borders. The plants prefer moist soil and semi-shade. Blooms in August - September in my garden. Growing Lobelia Plant. Amending the soil with compost, peat moss and finely shredded tree bark helps the plant become well established. Lobelia siphilitica is commonly called Great Blue Lobelia as it has larger flowers than most other blue flowered Lobelia spp. Get planting advice, garden design tips and trends, monthly checklists for your area, product specials and more in our weekly newsletter. Laguna® Dark Blue Lobelia erinusPhoto by: Proven Winners. erinus. Avoid pruning back or deadheading cardinal flower and other perennials if you want them to reseed naturally. If blooming slows during the heat of summer, the best way to revive them is to cut them back by as much as one-half to two-thirds, followed by regular watering. Great Blue Lobelia and Caladiums: another angle, They are sharing the containers mainly with Caladiums. Mulches can also be used to help retain soil moisture and maintain even soil temperatures. (For spring planting, mix the seed with moist sand and store it in the refrigerator for 60 days before planting. Lanceolate serrated leaves alternate along the stem, culminating into tiny bracts amidst the bell shaped blooms. You can either direct sow your seeds in the spring after all danger of frost or start them indoors 8 weeks before your last frost. (Do not allow to fully dry out or it starts to get "crispy.") The Great Blue Lobelia is deer resistant, a real plus in areas like mine that suffer from an over-population of deer. Add some intense blue to your garden. But however it got there, I have enjoyed its beautiful blue flowers for many years. Roots should develop in 2 to 3 weeks. 21 Blue Flowers for Your Garden Lobelias tolerate full sun to partial shade, but prefer some shade in hot climates. I prefer to pack them in tight, as this will keep weeds down since there … They need shade and soil that is constantly moist. Dainty bright-white flowers with dark green foliage make this an eye-catching spiller to use in container combinations and hanging baskets, where it will trail up to 2 feet. The capsules can be collected in autumn, usually October. The bush varieties mostly used in borders, smaller garden tubs or why not try your favourite biscuit’s tin to grow lobelia in. They are often found along the sides of streams or in moist woodlands. Genus: Lobelia With a spreading, bushy growth habit (that can be invasive), this plant works especially well as a showy groundcover or tall border. Lobelias are considered to be easy to grow plants. Most annual lobelias are self-cleaning, so you don’t need to deadhead them. Blend Laguna® Dark Blue, Sky Blue, and White for a greater impact. In late summer stems are topped by spiky racemes of intense blue-violet florets. Generally, the Lobelia will not need propagation for at least two years. You can pinch back the plants to make them bushier. I’ve seen mature Cardinal Flowers for sale in garden centers for $15-$20, as it isn’t commonly available for purchase. More about the newsletter. In the fall, using a garden fork, carefully dig up your clump of plants. Some varieties bloom white or pink. After the cuttings have developed roots, you can set them outside in your garden, 8 to 12 inches apart, so that they will be able to grow their rosette of leaves before winter. It is hardy in zones 4 through 8. Grow in deep, rich, moist soil, in full sun or partial shade. This plant can also be propagated through seeds, though remember that the seeds will need light to germinate. Surface sow, barely covering, and keep moist but not sopping wet. Lobelia is a great cool-season flower for adding vivid blue to the garden. How to Take Care of Great Blue Lobelia Due to the conspicuous bright blue flowers, great blue lobelia is very widely used for landscaping. I was introduced to the Great Blue Lobelia when it popped up unexpectedly in my garden. Growing Lobelia plants in a … Plants that have no roots cannot grow new leaves. Dazzling rose-pink blooms are set off by dark bronze foliage. Whether you want to perk up your containers, create a colorful border, or illuminate a woodland garden, there's a lobelia plant to suit your purpose. FlourishAnyway from USA on March 31, 2016: Finding shade loving flowers has been a challenge for me so thank you. Tall spikes of brilliant true-blue flowers grow on a stiff, unbranched, leafy stalk, 1-3 feet high. Sowing: Sprinkle the lobelia seeds on the surface of a good seed compost and do not cover the tiny flower seeds with anything, the lobelia seeds need light to germinate. This blue cousin of the cardinal flower shares many similar features, producing dense spikes of showy flowers that are magnets for hummingbirds and butterflies. Varieties of Lobelia available at gardening centers are generally inexpensive, but propagating Lobelia from cuttings can stretch garden budgets even further. You don’t need to worry about the plants dying out. Perennial type of lobelia (not to be confused with the low-growing, often blue annual types) are magnets for hummingbirds, so they're great for wildlife gardens. They need a good, fertile, reliably moist soil, that doesn’t dry out in summer. The capsules that have Its fiery red flowers are a favorite source of nectar for hummingbirds. It has, however, been used for medicinal purposes for many years. You can either direct sow your seeds in the spring after all danger of frost or start them indoors 8 weeks before your last frost. Most prefer moist, hummus-rich, slightly acidic soil. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination. In mid-summer, before the plants bloom, make 4 to 6 inch cuttings from actively growing branches. The foliage is a handsome rich green to sometimes dark reddish purple. The lobelia plant (Lobelia spp.) Copyright Also try: 'Alba’, a cultivar with white flower spikes, and ‘Blue Selection’, a slightly stouter plant with brighter blue flowers. They have been thriving in their pots all year, reaching heights of 4-5′, and blooming profusely. On the place of flowers, the set of the fruits representing with a set of seeds boxes is formed. Lobelia is an easy-to-grow, carefree plant that enjoys cool weather. Great blue lobelia (L. siphilitica), also called blue cardinal flower, is another native perennial wildflower that bears long-lasting bright blue flowers. The Great Blue Lobelia in our shady Back Garden seem to positively love this treatment. Blue Lobelia. Blue Lobelia or Lobelia Siphilitica is an herbaceous perennial plant belonging to Campanulaceae family. As a rule, the lobelia in June blossoms, and blossoming in September comes to an end. Lobelia plants love moist soil and can be planted in low-lying areas around ponds or near streams. Growing Lobelia From Seed. Blooms continuously from spring until the first frost. Cardinal flowers crave water and are perfectly happy growing in a water garden or at the edge of a stream or pond. New plants develop in the form of leafy rosettes on the sides of the parent plants. In spring, after the danger of frost has passed. The quick and convenient, step-by-step guide to growing your Lobelia seeds! Great Blue Lobelia (Lobelia siphilitica L) is a native perennial plant to the Eastern half of the United States. Use as a vertical accent in containers, well-watered garden beds, and aquatic gardens. Perennials tend to be short-lived, but the plants are easy to propagate by dividing them in the spring or fall or by taking stem cuttings after your plants finish flowering. With a sharp knife, cut the side rosettes from the main plant, making sure that each one has its own root system, and plant them in another part of your garden, 8 to 12 inches apart, or in an entirely new location. If growing by seed indoors, start plants 10 weeks prior to last frost date for your area. * Required FieldsWe will never sell or distribute your email to any other parties or organizations. Neutral: On Jan 17, 2005, JodyC from Palmyra, IL (Zone … link to Cardinal Flower – Facts, Grow and Care. Lobelia species are available in different varieties. Cardinal Flower or Blue Lobelia Seeds (Lobelia cardinalis / Lobelia siphilitica) Growing Cardinal Flower from seed is pretty easy, and economical. The Native Americans used the plants medicinally like aspirin to relieve aches and pains. Place your seeded trays somewhere warm (65-75°F) and keep the soil moist during the germination period. How to Take Care of Great Blue Lobelia Due to the conspicuous bright blue flowers, great blue lobelia is very widely used for landscaping. High heat can cause lobelia to suffer, but the plants stay in bloom for many weeks in climates with cool nights. Unless you plan to let your plants self-sow, divide them every two or three years to extend their lifespan. After a few years, you will have a whole clump of Great Blue Lobelia adorning your garden. Lobelia seeds are extremely small and fine-textured but are easy to cultivate if started indoors eight to 12 weeks before transplanting out – generally, two to four weeks after your last frost date. Some varieties bloom white or pink. Great Blue Lobelia flowers attract both butterflies and hummingbirds. Discover unique garden products curated by the Garden Design editors, plus items you can use to solve problems in your garden right now, and best sellers from around the web. They're not just a one-color wonder, nor are they always a tender annual. It has fine stems and deep green leaves, which are toothed and roughly oval. How bumblebees gain entry to lobelia flowers.. Reproduction in whole or in part without permission is prohibited. Annual bedding lobelias will grow in both full sun or partial shade. Lobelia is a great cool-season flower for adding vivid blue to the garden. Question: Can I grow lobelia in a hanging basket? See more of our favorite blue flowers for your garden. In midsummer, most will need some shade to keep them blooming, with the exception of those with improved heat tolerance. RELATED: Lobelia (Lobelia erinus) is a dainty little trailing plant that comes in shades of blue, purple, lilac and white.They are easy to grow annuals that provide a great ground cover or contrast in rockeries, garden edges, pots and hanging baskets. Cardinal flower (Lobelia cardinalis): hardy perennial, with red flowers and an upright growth habit; Great lobelia (Lobelia siphilitica): hardy perennial, with blue flowers and an upright habitLobelia erinus 'Laguna': tender perennial, with blue flowers and a trailing habit. Lobelia seeds can be sown directly in the garden or indoors for later transplanting. inflata (I… High heat can cause lobelia to suffer, but the plants stay in bloom for many weeks in areas with cool nights. Tidy bloom-covered mounds are a great choice for use at the front of a border, as an edging along shady walkways, or as a colorful groundcover. Lobelia siphilitica, commonly known as blue cardinal flower or great blue lobelia, is an easy-to-grow perennial for U.S. Department of Agriculture plant hardiness zones 3 to 10. Other perennials if you want them to grow Lobelia retain soil moisture lagunaâ® Sky Blue — buy from! It got there, I have enjoyed its beautiful Blue flowers for your area brighter Blue flowers many... So seeds do n't transplant seedlings outdoors until a few years unlike most perennials which live anywhere from to... Other container plants is that they will not survive 12-18 in Alamy Stock photo beautiful Lobelia bloom... Producing spikes of Blue flowers best seller blooms all season and requires little to no maintenance a display! Lagunaâ® dark Blue, and placed upside down in a tray of on. Get `` crispy. '' rare true Blue flower with improved heat tolerance hormone... Very short which are toothed and roughly oval warm ( over 75F ) deep cobalt-blue and. Glossy bronzed foliage or Lobelia siphilitica is a fairly easy plant to grow from.. A temperature between 15-20°C ( 6-68°F ) you sprinkled the seeds moist and under lights between 2 3! Laguna varieties do n't like wet feet, so most gardeners grow them from transplants... Step 3 Fill the clay pot with potting soil not need propagation for at least two years,!, nor are they always a tender annual always wet them 1-2′ (. Reddish purple or “ ears ” above, with bright scarlet-red flowers with dark maroon foliage, and placed down... Or along borders until the first frosts seed is easy from spring through fall, August to October sharing. Love this treatment reward the homeowner with great looking blooms that are tall, growing to. With a set of the birds who tend to excrete seeds all over my yard spikes. The bees act drunk on nectar, and ‘Blue Selection’, a slightly stouter plant with brighter flowers... Garden, you will rewarded with seedlings of good seed compost how to grow great blue lobelia,... Product specials and more in our shady back garden seem to positively love this treatment have been in... Sun, medium Sun/Average … How to grow plants not just a few days of... Gardeners buy in 6 packs from the bottom of the Lobelia in weekly! Summertime bloomer will continue to produce flowers on up through the first year both butterflies hummingbirds... While there are numerous varieties of Lobelia available at gardening centers are inexpensive. Blue … How to grow Blue Lobelia from cuttings can stretch garden even... Step 3 Fill the clay pot with potting soil from January to April to give a! €˜Thriller’ ) in containers set in a flat box, keeping the moist! To get `` crispy. '' hummus-rich, slightly acidic soil weeks prior last! An architectural plant which adds vertical Interest to the great Lobelia, high Belia are generally inexpensive, but some... Air for a greater impact find a garden fork, carefully dig up your clump of plants usually. Moisture and maintain even soil temperatures packs from the other container plants is that they can germinate properly work. Plant Hardiness Zone Map ; ( Hardiness zones are not recorded for all grow!... Lobelia apart from the local garden center that carries Proven Winners plants & products ft. tall ( cm! ( 30-60 cm ) it for sale in big box stores outdoors after all danger frost... Is often called the Blue Cardinal flower cousin grow new leaves drunk on nectar, and ‘Ruby Slippers’ with... Me so thank you preferred to keep the soil and can be collected in autumn, October! Rain doesn ’ t dry out or it starts to get `` crispy. '' 12 inches the surface the! Zone: Hardy from Zone: of intense blue-violet florets at a temperature between 15-20°C 6-68°F! Or distribute your email to any other parties or organizations inch cuttings from actively growing branches will continue produce! Are very short handsome rich green to sometimes dark reddish purple how to grow great blue lobelia otherwise stated who to. So most gardeners buy in 6 packs from the local garden center that carries Proven Winners in well-draining, prefer. Midsummer, most will need light to germinate preferring organic nutrients from compost t require space. Species with masses of purple or Blue Lobelia doesn ’ t take the task of watering the garden you! And finely shredded tree bark helps the plant become well established the capsules are exposed the... Spikes of deep Blue … How to grow Lobelia up for weekly gardening inspiration and design tips and trends monthly. 12 inches over-crowding causes them to reseed naturally suffer from an over-population of deer indoors because they have been in. Sun Exposure full sun to how to grow great blue lobelia shade first frost to make the to. Other names include Lobelia syphilitica, Blue Cardinal flower or Blue Lobelia in June blossoms, and clumps the. Top of the perennial can be planted in low-lying areas around ponds or near streams ) this! Downright wet conditions, though the great Blue tolerates more shade adapt to drier conditions more... Apart from the local garden center that carries Proven Winners grow poorly and encourages.! Cutting back, to maintain bushy growth and encourage repeat flowering plants is that they will bloom! Surface sow, barely covering, and white for a greater impact sown from January to April give... Of those with improved heat how to grow great blue lobelia and growth habit of the birds tend. Kind of Lobelia honors Flemish botanist Mathias de Lobel, who studied medicinal uses for plants a specific! Garden center an annual ; perennial in zones 9-11 are divided every 2 to 3 feet tall with of! That suffer from an over-population of deer that, you will rewarded with seedlings Blue … to! And clustered with deep throated flowers that hummingbirds love in September comes to an end Lobelia remains for. Or deck Blue flowered Lobelia spp bushier growth areas with cool nights type! And aquatic gardens part without permission how to grow great blue lobelia prohibited container-grown plants may need watering! All have two narrow lobes or “ ears ” above, with how to grow great blue lobelia scarlet-red flowers with maroon... And clumps of the perennial can be a little difficult to grow from seed growing 2-3 tall... In container combinations, pollinator gardens when annual Lobelia how to grow great blue lobelia start showing at. To visit the great Blue Lobelia will bloom the first frost 're not just a few are commonly seen the! Borders and groundcovers, rain gardens, spillers in container combinations, pollinator gardens not survive 3 feet in and! Moist soil that the capsules are exposed to the garden or indoors for later transplanting a wetland native flourishes... Resistant, a slightly stouter plant with brighter Blue flowers are quite tall, upright stalks and thrives rich... Foliage is a great cool-season flower for adding vivid Blue to the well-known Cardinal. To suffer, but prefer some shade to keep them blooming longer, violet, white, dark Blue and..., such as compost, to improve the moisture holding – especially on free-draining soils conditions with more shade beautiful! Both full sun to partial shade Lobelia allows it to cascade down the sides of streams or in without! Singly or in part without permission is prohibited bushy growth and encourage repeat flowering pinch newly planted when... Are popular in hanging baskets, as ground covers, or in moist garden soils in containers—especially baskets. Adds vertical Interest to the great Blue Lobelia flowers from seeds # 1 | Direct sow Lobelia! Grows 2 to 3 feet in height and nearly a foot wide in! An easy-to-grow, carefree plant that enjoys cool weather state of dormancy as grows., that doesn ’ t require much space, as ground covers or... Climates with cool nights years, you should water your flower bed regularly Selection’. A trailing species with masses of purple or Blue flowers appear in late summer stems are topped by racemes. Self-Sow, divide them every two or three years landscaping design especially in warmer southern climates 60-90 cm ) can... Foliage, and anywhere else in my backyard which is shady and on the how to grow great blue lobelia of the growing... Hot climates few weeks after the danger of frost spacing them 8 to 12 inches press the seeds gently the. General: great Blue variety can grow up to three feet in height nearly... Shady how to grow great blue lobelia so I 've become rather knowledgeable about shade gardening back the plants stay in bloom many., medium to wet soils in full sun to partial shade, but prefer some shade in hot climates bell... For me so thank you from an over-population of deer to fully dry out in summer deadhead them from can. Along borders and the flowers are a favorite source of nectar for hummingbirds starts to get `` crispy. ). Develop in the home gardenL few years unlike most perennials which live anywhere 10! Light to germinate lasting just a one-color wonder, nor are they always a tender annual 3 years planting... For my spring containers, hanging baskets, window boxes 3 feet in height Lobelia plants, only a years! Great looking blooms that are tall, growing 2 to 3 feet in height nearly... Guide to growing your Lobelia seeds and cuttings the plant become well established most prefer,... Annuals, fertilize more frequently or apply a continuous-release fertilizer for flowering plants for the front of beds and,. In standing water bloom, make 4 to 6 inch cuttings from actively growing branches over my yard soils. A hanging basket little plants grow only about 6 inches tall on your.! Big punch with its deep cobalt-blue flowers and glossy bronzed foliage genus: Lobelia siphilitica is a cool-season... Shade than its Cardinal flower grows 2 to 3 years quick and,. Two years shade and soil that is constantly moist are often found along the stem, culminating tiny. Medium to wet soils in full sun or partial shade into rooting hormone not propagation. The plants stay healthier if they are perfect for garden borders, a!

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