Suitable for Propagation
Allium Excellency is a beautiful flower consisting of many small purple flowers. This Allium has a sturdy stem of 75 to 100 cm. and is therefore also excellent as a cut flower.
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Allium Christophii are gorgeous alliums in the colour lilac and have a flower of about 20 cm in diameter, so plant the bulbs sufficiently apart for growth.
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Allium Karataviense is a gorgeous low allium variety that, with cream/pink coloured star-shaped flowers on short stems and large leaves, fits perfectly among low perennials.
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An enchanting allium variety, Allium Miami has red-purple semi-circular flowers and stands on tall sturdy stems. Ideal for between perennials.
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Allium Moly is a small species of Allium. Golden-yellow flower heads and grey-tinged leaves. Plant between perennials or roses or just at the edge of the border.
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The Allium Mount Everest is one of the longest Allium species (125 cm long) and therefore eye-catching in the garden. The pure white flowers collectively resemble a large snowball.
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Also called white garlic, Allium Neapolitanum dies off in summer. New growth comes in late autumn and the edible leaves are there during part of the winter.
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Allium Nigrum is a tall allium with a semi-spherical screen of creamy white flowers that feature a green heart. A suitable bulb for gardens with a natural look.
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Allium Purple Sensation is a beautiful ornamental onion with a deep purple colour, this allium granted itself perfectly between perennials and or late tulips. This allium returns beautifully every year.
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Allium Nectaroscordum Siculum can be planted in both full sun and in a spot with some shade. As long as the soil is not frozen, they can be planted from October.
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Allium Summer has purple flowers, this allium species is a good nectar source and attracts many pollinators such as bees, bumblebees and butterflies.
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The Allium Caeruleum has beautiful sky-blue flowers, which stand on 40 cm long sturdy stems. This allium is also suitable as a cut flower.
Read moreAlliums (Ornamental onions)
The genus Allium has many species and cultivars. We offer a number of large-flowered Alliums and a number of Alliums suitable for naturalising.
The large-flowered Alliums (Dutch name: sierui or garlic) prefer a sunny spot, but also thrive in partial shade. Ornamental onions flower when most perennials have only green leaves. They are therefore great for combining with perennials. Plant them in large numbers, give them some extra fertiliser every spring and enjoy a blooming border in May and June! When planting, pay attention to the height of the ornamental onions and perennials: During flowering, the ornamental onions should stick out above the perennials! Flowering Alliums may disappear under the leaves of the perennials later in the season.
How do you propagate Allium (Ornamental Onion)?
Propagating ornamental onions can be done generatively by seed or vegetatively by daughter bulbs. Sowing out makes sense only with pure bulb varieties. Until the seed has developed into a bulb that can flower, several years may pass.
Is Allium (ornamental onion) perennial?
The majority of Allium are perennial bulbs. When digging up the larger varieties, 2 bulbs together form one plant. One bulb is sold and the other replanted. After flowering, they can remain for years. The leaves draw nutrition from sunlight and strengthen the bulb, which blooms again the following year. Let the leaves turn yellow before removing them; this energises the bulbs. They can also spread by seed. Sowing and raising them is easy. The species A. moly, A. oreophilum, A. sphaerocephalon, A. stipitatum, A. atropurpureum, A. caeruleum, A. cernuum, A. flavum, A. puchellum, A. triquetrum, A. ursinum and A. zebdanense are suitable for naturalising.
Where do I plant Allium (ornamental onion)?
Most ornamental onions do well in the sun, in well-drained soil. Plant the tallest varieties in a protected spot so that the stems are not too much of a nuisance when it is windy. In gardens with more shade, you can plant Allium moly.