Allium, large-flowered
Large-flowered alliums are great to combine among perennials in the border. The leaves of the Allium start dying off before flowering time. This is the moment when the flower bulb starts to ripen and has almost finished growing. If the Allium is planted among perennials, you can camouflage the dying leaves among the other plants and it will be less noticeable.
Large-flowered Alliums can stay in the ground for several years. As long as the flowering remains beautiful, leave them in place. If the flowering diminishes, that's the time to dig up the bulbs after flowering. In summer, keep the bulbs warm and dry. If the bulbs are still in good condition, they can be replanted elsewhere in the garden in autumn.
Plant Allium in a sunny spot in well-drained soil.
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Allium altissimum 'Goliath'
Previously offered as A. 'Samson'. A special selection of A. altissimum with all the same height and flower size. Height 200 cm. Flower size 10-12 cm. -
Allium 'Ambassador'®
A large flowering violet blue Allium with very strong stems. Height 120 cm. Flowering period: June.
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Allium atropurpureum
A late-flowering, purple-red Allium. Height 60-80 cm. -
Allium christophii
Albopilosum. Lilac, large flowered Allium. Excellent for drying. Height 40 cm. -
Allium 'Firmament'
Beautiful purple Allium, height 70 cm. -
Allium 'Forelock'®
Maroon with a purple “crest”, striking flower. Height 60 cm. -
Allium giganteum
Violet, large flower, height 150 cm. -
Allium 'Gladiator'
Early flowering lilac purple Allium, height 100 cm. -
Allium 'Globemaster'®
A large Allium (100 cm.) with very big lilac flowers. One of the best of the large flowering alliums. Flowering time: more than 5 weeks. -
Allium karataviense
Pale lilac (almost white), height 20 cm. -
Allium 'Mount Everest'
White, height. 100 cm. The best large flowered white Allium. -
Allium nigrum
Syn. multibulbosum, white, height 70 cm. -
Allium obliquum
Height 60-90 cm. Nice but rather small round flower heads in greenish yellow, flowering period: June-July. -
Allium 'Ostara'
A cross between A. karataviense and A. atropurpureum makes this cultivar to a 40 cm. high karataviense shaped plant with atropurpureum coloured flowers. -
Allium schubertii
Violet-pink, large flower, rather strangely shaped. Excellent for drying. Height 40-50 cm. -
Allium 'Toabago'®
Previously offered as Allium 'Spider'. A cross between A. schubertii and A. atropurpureum. The result is a schubertii like flower but a bit smaller and darker. The height of 60 cm. makes it a good cut flower. -
Allium 'Violet Beauty'
A very nice violet Allium with an umbel of star shaped flowers, height 60-70 cm. -
Allium 'Summer Drummer'
Late summer flowering, purple red Allium. Height 175 cm. -
Allium 'Purple Rain'
Powerful purple-red color, beautiful transparent sphere with shiny star-shaped flowers. Multiplies quickly. -
Allium 'Purple Sensation'
(Allium aflatunense 'Purple Sensation'). Large-flowered purple Allium, height 80 cm -
Allium 'Miami'
The hemispherical umbel with its flat base is composed of glossy, star-shaped crimson flowers. Excellent cut flower. -
Allium basalticum 'Silver Spring'
Half round, white flowers with a striking dark red ovary. -
Allium karataviense 'Ivory Queen'
Dutch selection, large globes with ivory white flowers. Decorative blue-gray, broad leaves. -
Allium 'Mercurius'
Sturdy Allium, the straight stems bear a hemispherical purple umbel. Excellent cut flower. -
Allium altissimum 'Album'
The white spherical flowers on tall stems are followed by decorative seed pods that remain attractive for a long time after flowering. -
Allium 'Party Balloons'
A recently introduced cultivar with the special feature that several flower stems appear per bulb. Good to use between low plants and in pots. -
Allium karataviense x 'Red Giant Star'
Selection with pink-red flowers, large gray-green foliage. Height 15-20 cm. -
Allium 'Lucky Balloons'
Originated from A. karataviense x A. hollandicum. Several flower stems appear from a bulb, an average of three per bulb, on which the spherical inflorescences with light purple-pink flowers emerge. -
Allium schubertii 'Arctic Snow'
A white flowering form of Allium schubertii. Large 'spiky'-shaped inflorescence, very suitable as a dried flower. -
Allium amethystinum 'Red Mohican'
Summer-flowering burgundy allium in which a crest develops during flowering from which white flowers emerge. -
Allium nigrum 'Pink Jewel'
A tall, pale pink Allium with half-rounded flower heads and dark flower stems. Slightly variable. -
Allium 'White Giant'
An extra tall white allium on sturdy 150 cm tall stems.