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The assortment of summer-flowering bulbs can be ordered from the 30th of January.

Shipping is between February and May. The shipment is divided into 2-week periods, so you can indicate your preferred shipping time when placing your order.

Allium

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.

The small-flowered Alliums are ideally suited for naturalising in a sunny spot in permeable soil. With the exception of Allium triquetrum and Allium ursinum, which also thrive in a (semi-)shaded spot.

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Showing 1-48 of 58 item(s)

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Allium 'Ambassador'®

A large-flowered violet-blue Allium with very sturdy stems, height about 120 cm. The foliage remains attractive for a long time during the flowering period, June.

Delivery in planting time Sep-Nov
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Allium 'Cameleon'®

The soft pink flowers go through several colour stages during flowering. The downy leaves are hairy at the sides. A nice ornamental onion that naturalises well.

Delivery in planting time Sep-Nov
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Allium 'Firmament'

Beautiful dark purple allium with a metallic sheen. The semi-spherical flower head has a diameter of 10-12 cm. The sturdy flower stem is 70-80 cm high.

Delivery in planting time Sep-Nov
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Allium 'Forelock'®

Maroon with a purple “crest”, striking flower. Height 100-140 cm.

Delivery in planting time Sep-Nov
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Allium 'Gladiator'

A tall, somewhat earlier-flowering Allium with lilac-purple, compact, spherical flowers. Excellent long-lasting cut flower.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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Allium 'Hair'®

Reddish-purple bulbils with unusual green blades, height 30-40 cm.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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Allium 'Miami'

The hemispherical umbel with its flat base is composed of glossy, star-shaped crimson flowers. Excellent cut flower.

Delivery in planting time Sep-Nov
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Allium 'Millenium'

Compact growing shape, solid gray-green leaves in which from July the numerous purple-red spherical inflorescences appear.

Delivery in planting time Sep-Nov

. available to order from February 2026
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Allium 'Mount Everest'

White, height. 100 cm. The best large flowered white Allium.

Delivery in planting time Sep-Nov
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Allium 'New York'

A medium-high Allium with soft violet, semi-spherical flower heads. The slender, grey-green leaves remain attractive during flowering. Beautiful for midway in the flower bed.

Delivery in planting time Sep-Nov
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Allium 'Ostara'

A somewhat taller Allium, created from a cross between karataviense and A. atropurpureum. A beautiful cultivar in which the decorative foliage is recognisable from A. karataviense and the flower colour comes from A. atroprupureum.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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Allium 'Purple Rain'

Powerful purple-red color, beautiful transparent sphere with shiny star-shaped flowers. Multiplies quickly.

Delivery in planting time Sep-Nov
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Allium 'Purple Sensation'

(Allium aflatunense 'Purple Sensation'). Well-known, grateful ornamental onion with round, purple flowers. For an Allium, it flowers quite early, as early as the end of April. Great for naturalising, also in places with less sun. Height 80 cm.

Delivery in planting time Sep-Nov
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Allium 'Starlight'

A recently introduced, medium-high Allium with semi-spherical umbels. The flowers open violet-pink and glow to pinkish white with strikingly dark fruiting petals. Beautiful for midway in the flower bed.

Delivery in planting time Sep-Nov
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Allium 'Summer Beauty'

A rich- and exuberant growing selection. During the entire summer it shows many globular flowers.

Delivery in planting time Sep-Nov

. available to order from February 2026
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Allium 'Summer Drummer'

Late summer flowering, purple red Allium. Height 175 cm.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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Allium 'Universe'

As the name suggests, here we are dealing with a huge, bulbous, not too massive flower head, full of star-shaped purple flowers.

Delivery in planting time Sep-Nov
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Allium 'Venus'

Large-flowered Allium with purple-violet, spherical flowers. Striking appearance and excellent cut flower..

Delivery in planting time Sep-Nov
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Allium 'Violet Beauty'

A very nice, medium-high, 60-70 cm ornamental onion with star-shaped, violet flowers, multiplies quickly.

Delivery in planting time Sep-Nov
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Allium 'White Giant'

An extra tall white allium on sturdy 150 cm tall stems.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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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.

Delivery in planting time Sep-Nov
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Allium amethystinum 'Red Mohican'

Summer-flowering burgundy allium in which a crest develops during flowering from which white flowers emerge.

Delivery in planting time Sep-Nov
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Allium amplectens 'Graceful Beauty'

An easy-growing Allium from North America with ball-shaped white flower clusters. Height approx. 40 cm.

Delivery in planting time Sep-Nov
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Allium atropurpureum

A late-flowering, dark purple-red allium, height 60-80 cm. The semi-spherical flower head consists of densely arranged, star-shaped flowers.

Delivery in planting time Sep-Nov
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Allium basalticum 'Silver Spring'

Half round, white flowers with a striking dark red ovary.

Delivery in planting time Sep-Nov
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Allium caeruleum

Sky-blue star-shaped flowers forming a compact, spherical inflorescence about 4 cm in diameter. Late flowering, from June onwards. Suitable for naturalising.

Delivery in planting time Sep-Nov
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Allium carinatum ssp. pulch. 'Album'

Pending white flowers, flowering-time: July-August. Height 40-50 cm. Pefect for naturlizing.

Delivery in planting time Sep-Nov
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Allium carinatum subsp. pulchellum

Pending purple-pink flowers, flowering-time: July-August. Height 40-50 cm. Perfect for naturlizing.

Delivery in planting time Sep-Nov
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Allium carolinianum 'Rosy Dream'

Strong flower stalk with a spherical inflorescence of about 3 cm, which is densely covered with dark pink, scented flowers.

Delivery in planting time Sep-Nov
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Allium cernuum

An American species in which the flower head consists of violet-pink, pendulous, globular flowers. Both leaves and flowers are edible, height 40 cm. Clud-forming growth habit.

Delivery in planting time Sep-Nov
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Allium chloranthum 'Yellow Fantasy'

Elegant umbel with numerous green-yellow flowers. Looks like A. flavum but flowering time is over a month earlier.

Delivery in planting time Sep-Nov
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Allium christophii

The large flower consists of up to a hundred shiny violet flowers. Propagates by seed, in sunny, dry places A. christophii will naturalise. Very suitable as a dried flower.

Delivery in planting time Sep-Nov
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Allium cowanii

Snow-white flowers, formed in a flower head, appear in April-May. Naturalises well. Height 40 cm.

Delivery in planting time Sep-Nov
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Allium flavum

The golden yellow, pendulous flowers form a nodding flower head. The slender foliage is grey-green. Naturalises well in a sunny, dry location. Height 35 cm.

Delivery in planting time Sep-Nov
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Allium giganteum

Light purple, large-flowered, one of the largest and most striking ornamental onions, height approx. 150 cm.

Delivery in planting time Sep-Nov
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Allium karataviense

A low growing Allium with light purple-pink to white flowers, large purplish-gray leaves. Height 15-20 cm.

Delivery in planting time Sep-Nov
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Allium karataviense 'Ivory Queen'

Dutch selection, large globes with ivory white flowers. Decorative blue-gray, broad leaves.

Delivery in planting time Sep-Nov
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Allium karataviense x 'Red Giant Star'

Selection with pink-red flowers, large gray-green foliage. The flowers are slightly variable in colour. Height 15-20 cm.

Delivery in planting time Sep-Nov
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Allium moly

Zierlauch mit goldgelben Blütenschirmen. Hervorragend zum Verwilderung geeignet, auch im Schatten.

Delivery in planting time Sep-Nov
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Allium nigrum

Synonym A. multibulbosum. Ornamental onion with semi-circular white flower heads, height 70-80 cm. Excellent cut flower.

Delivery in planting time Sep-Nov
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Allium nigrum 'Pink Jewel'

A tall, pale pink Allium with half-rounded flower heads and dark flower stems. Slightly variable.

Delivery in planting time Sep-Nov
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Allium obliquum

Lovely round, rather small greenish-yellow flowers, a unique colour for a tall Allium. There are leaves on the flower stalks. Flowering time June-July, height 60 to 90 cm.

Delivery in planting time Sep-Nov
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Allium oreophilum 'Samur'

A small ornamental onion with purple-pink flowers, suitable for naturalising. Found in the mountains in Afghanistan.

Delivery in planting time Sep-Nov