Allium giganteum is commonly known as giant onion or flowering onion. Field of allium by merica under Pixabay license. The attacked plant is sprayed with this thoroughl… The leaves are approximately 18″ inches long, fragrant and strap-shaped. In the landscape, it can be a cultivated perennial in flower beds where it does well with daylilies and low-growing grasses. Flowering & Fragrance Credits for images shared to Nature & Garden (all edits by Gaspard Lorthiois): You may need to stake the stem to prevent collapse. The Latin (Allium) means “garlic” and (giganteum) means giant. Care: Source: Edenbrothers. Allium giganteum is a plant of semi-arid areas, and can tolerate cold winters with temperatures going below zero - at least down to -5°c without protection in our winter-wet garden in Cornwall, England. Stems and leaves of the giant allium plant smell like onions, but this is not an edible plant. Once established the plants are drought tolerant. These plants usually naturalize easily and will return bigger and more vibrant each year. A perfect background plant that you might want to combine with finer textured plants such as ornamental grasses. Don't be alarmed when they don't bloom right away: They're early summer-flowering plants. A. karataviense (Turkestan allium). It is also used in flower bouquets, because the foliage and the flowers both can be used to make appealing bouquets. Family Alliaceae . For example, the blue tongue leek (Allium nevskianum) grows to a height of between 12 and 15 centimetres, while many hybrid varieties, but especially the giant leek (Allium giganteum), impress with their impressive height. Required fields are marked *. Divide and replant bulbs every 3-4 years. University of Maryland Extension recommends cutting flowers of Allium christophii, also known as stars of Persia, and Allium giganteum or giant onion in late spring or early summer, when flowers are 100 percent open or nearly so. Alliums should be planted in part to full sun in well-draining soil. An organic, pre-emergence weed block or … Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel. For the taller species you can stake the stem to keep it from folding under the wind. Native to Europe and Asia, this ornamental onion belongs to the same genus as the following species: edible garlic, onion, shallot, chives and belongs to the same family as leek. A truly impressive Ornamental Onion, featuring big round heads of mauve-purple flowers in late spring. Plant bulbs more or less 8 inches (20 cm) apart. Of the various Allium species of ornamental onions, giganteum is the tallest species. These “large onions” are also deer and rabbit resistant. Once again, the foliage is rather tatty. Need advice? Allium is a perennial that grows quite easily which will produce very beautiful purple blue flowers that can be up to 8 to 12 inches (20 to 30 cm) across. This “giant onion” belongs to the Amaryllidaceae family. How to grow alliums These ornamental onions are bold and architectural, with large rounded heads of usually purple flowers, followed by attractive seedheads. Allium giganteum Growing and Care Guide. Hyland's Allium Cepa 30X Tablets, Natural Homeopathic Runny Nose, Cold or Hay Fever Relief, 250 Count (Pack of 1) 4.7 out of 5 stars 40 $10.99 $ 10 . By late spring, large, showy, round clusters of purple flowers appear. Save my name, email, and website in this browser for the next time I comment. Planting and caring for allium couldn’t be easier: All alliums like rich, well-drained soil and prefer a sunny site—although many species will also tolerate shade! Giant Flowering Onion: USDA Zone: 4-9: Plant number: 1.032.090. All-in-all, best practice would be to use one of the many other types of Allium intended as a food crop in the kitchen. The genus Allium (the Latin means "garlic") includes many garden plants that grow from bulbs or bulb-like rhizomes. After plants bloom, the leaves will die back leaving only the tall, erect stem and pom-pom blossom. Leave large bulbs (2″-3″ in diameter) in the ground to spread or take them up annually, divide and redistribute. Among the last of the perennials to bloom, its flowers often don't open until late September or October. Their one-inch flower clusters start off greenish and eventually start to resemble red clover. Saturate the soil after planting. Moly Allium, Drumstick Allium, and Azure Allium bulbs are small – only 5/7 cm and should be planted 2-3″ deep. Persian Onions, Allium aflatunense, are hardy in USDA zones 4-8.Early summer bloomer with 4"-4½", round clustered umbrels of 50 , rose-purple flowers on 2-3 foot stems. Depending on the species, ornamental garlic reaches a growth height of 12 to 150 centimetres. Follow us there, comment, and share! Amend the soil and replant bulbs at the proper spacing. Plant dormant allium bulbs in the fall according to your growing zone. To divide bulbs and increase your planting, lift the bulbs with a trowel. Simply keep the plants moderately watered until they fade to yellow and begin to shrivel. By entering your email address you agree to receive a daily email newsletter from Plant Care Today. Your email address will not be published. See more ideas about Allium, Bulb flowers, Perennials. Chives are aromatic herbs that are very easy to grow. These bloom in the summer and produce softball size clusters of bright lilac flowers, with stalks that are up to 5’ tall. Native to the Himalaya region, this allium can be found growing in forests, naturalized areas, and in disturbed areas where it has the potential to be weedy. A Very Dark Purple Allium. The different Allium varieties all boast superb flowers bunched up in balls and the size and color of this ball depends on the variety. They look best when allowed to waft their way throughout the garden so that they can surprise you by peeking out through other flowers. Since the allium is very resistant, it almost only gets attacked by pests if it is fostered poorly. ... Care Level Easy . These flower globes are about the size of a softball and quite impressive. Information on the toxicity of this plant is conflicting. Top tulip facts Name – Tulipa Family – Liliaceae…, The crown imperial is a unique and very decorative flower bulb. Related Reading: Growing The Pregnant Onion [Ornithogalum caudatum]. Allium giganteum, commonly called giant onion, is perhaps the tallest of the ornamental onions. Nice for this is to use bamboo, it is perfectly suited and actually enhances the visual impact of the plant. Allium care is simple if planted in the right soil and sunlight. Allium post bloom care is very easy. It is the only member of the Allium family grown for its large flowers. Allium care is surprisingly simple for plants of such exceptional beauty. Genus Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem Suggested uses. Allium is a superb flower, famous for its surprising ornamental floral scapes. These bear large clusters of flowers in mid-spring. A weakened allium is attractive for typical pests like aphids and snails. A border of ornamental onions planted along a back fence makes a lovely definition. Cultivation. The giant allium (Allium giganteum) stands out among other ornamental alliums with its 4-inch wide lavender flowers, which appear atop 5- to 6-foot tall stalks. Tall, strong stems (3″ to 4″ inches high) emerge from the center of the basal rosette early in spring. It is wise to take them up at least once every three or four years to prevent overcrowding. In the United States, this Allium bulb is hardy from USDA hardiness zone 5 through 8. Allium giganteum (Giant allium) will reach a height of 1.5m and a spread of 0.5m after 2-5 years.. For this a soap solution out of water and a tablespoon of curd soap is suitable. Weave them through sunny borders or combine them with feathery grasses for best effect. Allium ‘Giganteum’ AGM The most expensive bulb usually, but well worth it because this is taller, reaching four feet in height. Plant giant allium bulbs in early Autumn 6 to 8 … Locate your Allium bed in a sheltered area where wind cannot damage it. Your email address will not be published. These needs may be taken care of by rainfall and by adding organic mulch after planting. … Allium loves high sun exposure. Plant them at a depth of 2-3 times their diameter (4-6”) in a well-drained sunny or partly-shaded site. how to plant bulbs in flooded or clay soil, Allium blooming close-up (also on social media). The tall stems are excellent for cutting or drying. Aphids These little insects, which are visible with the bare eye and become noticeable through honeydew, should be removed as fast as possible. Soil must be light and drain well, and even poor soil is fine. Allium giganteum (Ornamental Onion) Perhaps the tallest of the ornamental onions, Allium giganteum is a striking and bold addition to the garden with its star-shaped, tiny lilac-purple flowers forming a 5-6 in. Allium atropurpureum is perhaps the darkest purple allium. Some of the best alliums for perennial gardens include Gladiator, Globemaster, Purple Sensation and Allium christophii. The allium plant needs only infrequent watering, weeding, and fertilization. But don't forget, giant alliums are in the same family as onions and garlic and just as resilient and undemanding. Allium giganteum [AL-ee-um jy-GAN-tee-um or gy-GAN-tee-um] is a perennial ornamental onion hailing from Central Asia and the Himalayas. Allium flowers form dense balls of color at the top of strong stems, and they make excellent displays in the garden or in bouquets. You will find there are several bulbs connected. If it is 2 inches (5 cm) tall, plant 6 inches (15 cm) deep. Happy Planting! Allium has only moderate watering requirements. If you wish to plant in pots, follow the same instructions as above. The showy, fragrant, purple blossoms appear from May through June. Family – Liliaceae (lily family) Allium bulbs should be divided every three or four years. The Giant Allium requires full sun exposure and protection against high winds. Save to My scrapbook Allium flowers range from purple, burgundy, lilac, silvery amethyst, pink, blue, to yellow and white. They make a good choice as bedding plants, cut flowers and exhibition plants. The largest of the ornamental onions. Plant Height (Inches): 60 to 72 Plant Spread (Inches): 6 to 9 Time of Bloom: Summer Flower Details: Pink, Purple Leaf Foliage: Green Fruit: Of the various Allium species of ornamental onions, giganteum is the tallest species. Depending on the amount of rain, water about 1″ per week. Rock Gardens: Alliums are well-suited to rock gardens, where they thrive in the well-drained pockets between rocks. Its flowers … Allium giganteum are some of the largest allium bulbs; plant them 6-8″ deep. You will not need to fertilize again. Also attractive as fresh-cut flowers, both of these species are often used as dried flowers. Divide and replant bulbs every 3-4 years. They produce an abundance of leaves. Share your garden joys & woes! Colors range from pinkish to beige to reddish lilac. Grow in fertile, but well-drained soil. Scientific Name: Allium giganteum Common Name: Giant onion Growing Zone: USA: 6 to 10 Life Cycle / Plant Type: Herbaceous, Perennial Plant Details. Note that allium leaves tend to turn yellow before or after the blooming of the large umbels, and so it helps to plant ground-covering perennials around the giant onion plants, to cover the wilted leaves and only let the flower stem stick out. Burpee allium giganteum has the LARGEST blossoms of the Ornamental onions and is dear resistant TIPS FROM BURPEE: Allium giganteum grows best in full sun to light shade in a light, well-drained soil enriched with organic matter. Because they are so tall, they make a very dramatic background plant. 5 2 votes. It is usually necessary to stake the large flowers and plants to prevent them from tumbling over. The plant can grow 3′ to 5′ feet high and spread 1-1/2′ to 2′ feet. wide (12-15 cm) globe-shaped cluster. Appearance and … Core Crown Imperial facts Name – Fritillaria imperialis Family –…. As for pot-growing allium, remember to water regularly because water needs are higher due to the fact that potted plants tend to dry off faster. Choose species that are smaller in size, such as Allium flavum, Allium karataviense and Allium sikkimense. Soil – ordinary. When transplanting or moving plants, wait until the end of the growing season after the foliage has died back. Plant giant allium bulbs 5″ or 6″ inches deep and 9″ inches to a foot apart. These plants look best when 5 to 7 bulbs are grouped together. Foliage grows in a basal rosette which is greenish gray in color. ... Ozawa allium (Allium thunbergii 'Ozawa'): A tidy, clump-forming plant that grows 18″ to 20″ high. Aug 23, 2012 - Explore Edith Mae's Attic's board "Allium", followed by 368 people on Pinterest. Drumstick allium (Allium Sphaerocephalon) are early summer bloomers. The plant is particularly sensitive to excessive water, since the onions begin to rot. Allium Giganteum Care Size & Growth. Proceed to group 10 or 15 bulbs close together to create clustered spots of color. No comments yet – be the first to share your thoughts! All plant parts are considered mildly toxic — reactions such as diarrhea, nausea and vomiting and not uncommon. Cut wilted flower scapes as they die off, cutting the stem off as short as you can. Plant Description: Bulbous ornamental perennial onion. The plant can grow 3′ to 5′ feet high and spread 1-1/2′ to 2′ feet. Apply heavy mulch to protect the bulbs during the winter. Other common names giant onion giant allium . Allium giganteum is planted in fall more or less 4 to 5 inches (10 to 12 cm) deep in light soil. Soil must be light and drain well, and even poor soil is fine. Giant Alliums, Allium giganteum, are hardy in USDA zones 6-10.Summer bloomer with 4"-6", dense, round umbrels with up to 100 star shaped, violet to deep purple flowers on 4-6 foot stalks. Use your fingers to separate them gently. Name – Allium giganteum It is a bulbous perennial (large bulbs to 2-3” diameter) which produces a basal rosette of grayish-green, strap-shaped leaves (to 18” long). As long as your allium plant has enough sun and good drained soil, it will not need much care. Click to open the post in a new tab on the relevant social media site. Bears … Allium giganteum is planted in fall more or less 4 to 5 inches (10 to 12 cm) deep in light soil. The bloom time lasts for about three weeks. Never allow plants to stand in water for extended periods of time as the bulbs will rot. Leave the Allium gigantea in the flower garden. Take up the bulbs, divide them as needed and replant. Caring for allium is extremely easy, since the needs of this perennial bulb plant are not difficult to meet. Like most bulbs, they are prone to rot if the soil is too wet. 99 ($0.04/Count) $14.29 $14.29 Plantcaretoday.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, Best Uses For Ornamental Allium Giganteum, Growing The Pregnant Onion [Ornithogalum caudatum], Pruning Desert Rose Plants: When | Why | How, Hoya Australis Care: Growing A Healthy Australis Hoya Plant, Tips On Getting Rid Of Aphids On Gardenia Plants, How To Grow And Care For Hoya Macrophylla Variegata. A good tip to know how deep to plant it is to multiply the height of the bulb by 3. In both pots and in the ground, they will bear nice flowers without asking you to care for them. We'll respect your privacy and unsubscribe at any time. Plant allium bulbs in the fall as you would any other bulb. Cut off the dead vegetation even with the ground. Allium giganteum. Create or join a topic on our garden & bulb flower forum, too. At the end of the growing season, dig up the allium bulbs in the fall, divide and replant or leave them in place. If you get regular rain, you may not need to water at all. The flowering onion is a dramatic and unusual flowering bulb. Essential chives facts Name –…, In the bulb flower category, tulip is a universal favorite in our gardens. Apply a flowering bulb fertilizer at planting. Giant Alliums do not experience many serious diseases or pest problems. The best time to plant the bulbs is when they’re dormant in the fall. A good tip to know how deep to plant it is to multiply the height of the bulb by 3. Allow foliage to die down before trimming. Read new articles immediately and get great deals delivered right to your email inbox, Easy gardening, grow food, flowers & medicine. Forms light green strap-like basal leaves up to three feet long. If you are unsure of the planting depth Holland Bulb Farms lists the planting depth on all of the allium bulb packages they sell. There is also information suggesting that the bulblets, bulbs, and leaves can be used cooked, raw, pickled and as a seasoning. Hardy, Easy-Care, Deer- and Rodent-Resistant. The flower is grapefruit-sized with lots of flowers that form a fuzzy ball, but this is a species found on lower mountain slopes in Central Asia, introduced in 1883. In flower beds or along edges, and also along a wall or simply plunked in the middle of the yard, the ornamental impact of this plant is guaranteed! Exposure – full sun A. giganteum (Giant Allium). Only cut leaves back when they have already turned yellow because that is when the bulb is stocking up on nutrients for the next blooming cycle. It adds a great deal of interest to any garden. If leaving the bulbs in place, reduce watering until the stems have withered and died. Blooming in late spring to early summer, this Giant Allium enjoys long-lasting blooms and remains ornamental in the garden well into summer. Type – perennial, Height – 8 to 40 inches (20 to 100 cm) Plants in full bloom, are top-heavy. Allium blooming close-up (also on social media) by Dean Moriarty under Pixabay license Easy to grow, it is perfect in flower beds or in pots and garden boxes to decorate your terrace or balcony. At this point, you can cut the plants down to the ground, leaving them where they are or dividing them.