Alliums are deer, rabbit and rodent resistant. Heights also vary, with some flower stalks as short as 5 inches and others as tall as 4 feet. Unfortunately, Allium nigrum and atropurpureum do not come back. Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. Sometimes the big-headed alliums like christophii and Gladiator will bloom for a second year, but not always. Hardiness: Hardy Care tips: Remember these are very perennial so plant them somewhere permanent. Such a lovely plant combination to cheer you up for... Use our interactive toolsto design your dream garden. The description of these plants has been written based on numerous outside resources. Grow in well-drained soil in full sun. Buy online or contact us on 01234 709099. Allium is a genus of monocotyledonous flowering plants that includes hundreds of species, including the cultivated onion, garlic, scallion, shallot, leek, and chives. We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records. A late-flowering, purple-red Allium. » Heirloom variety » The heat of summer brings out it's … If you select any attributes with or without a plant name, you will see a much narrower selection of results taken only from the old RHS Plant Selector database. Plant size. ... Plant Height. Plant in … Under plant with hostas for a complimentary background. Tall, strong stems keep flower heads upright from May to June. Allium atropurpureum is a hardy perennial bulb with star-shaped, deep purple-red flowers packed into a half-globe umbel, 2 in. Height 60cm. Add color and texture to your summer garden with the showy 2-inch clusters of dark purple flowers that adorn the 2-1/2-foot stems of Allium atropurpureum plants, also known as purple-flowered onions. Data sheet Height in cm. Allium Atropurpureum | Ornamental Allium | Dark Maroon Allium Bulbs 2-inch blooms are formed by tightly packed starry florets in a deep maroon with nearly black hearts. It has basal, strap-shaped leaves and in late spring and early summer bears spherical, deep purple flowers on upright stems. Each type of allium adds its own distinctive style and personality to the garden. Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience. OUT OF STOCK. Sometimes the big-headed alliums like christophii and Gladiator will bloom for a second year, but not always. Allium Moly | Sunshine Allium | Yellow MolyLooking for bulbs with the easy care of alliums but prefer a color that's warm and sunny? To create additional collections, you must be a paid member of our site. Suitable pH: acid, neutral and basic (alkaline) soils. Cookies, This site is protected by reCAPTCHA and the Google, Learn How To Plant And Care for Your Spring Flower Bulbs, Allium hollandicum 'Purple Sensation' (Ornamental Onion), Allium 'Mount Everest' (Ornamental Onion), Allium sphaerocephalon (Drumstick Allium), Anthriscus sylvestris 'Ravenswing' (Cow Parsley), Anemanthele lessoniana (New Zealand Wind Grass), Papaver orientale 'Prinzessin Victoria Louise' (Oriental Poppy), Great Bulbs and Perennials as Companion Plants for Azaleas and Rhododendrons, Brighten Up Your Garden From January Through May with Colorful Flower Bulbs, Want Garden Inspiration? Available online through October 3, 2020. An allium flower head is a cluster of individual florets. Allium 'Ambassador' The Spruce / David Beaulieu. Mature Height: 20-24 In. 020 3176 5800 Join now and start creating your dream garden! An easy, attractive species. Our Botanical team are working hard to increase the number of plants with detailed information. This heirloom variety's colour is especially dazzling in contrast to pale pink peonies or lighter-hued alliums. RHS members can get exclusive individual advice from the RHS Gardening Advice team. Growing Calendar. Genus: Allium Variety atropurpureum Type: Deciduous Soil Type: Well-drained but fertile, add grit on heavy soils Site: Full sun Height: 70cm (28in) Spacing: Plant 15cm deep, 20cm apart. Not sure which Alliums to pick?Compare All Alliums, Buy Allium atropurpureum (Ornamental Onion), Great Plant Combination Ideas with Alliums. To achieve optimum flowering results, it is important to plant the bulbs at the right time. Allium nigrum var. Its scape is up to 100 cm (39 in) tall. Deep red-purple spherical flower umbels in late spring and early summer. The Royal Horticultural Society is the UK’s leading gardening charity. Click here to find out more. A. atropurpureum - A. atropurpureum is a bulbous perennial. 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