Allium hollandicum, the Persian onionGreat Plant Picks, Allium hollandicum ‘Purple Sensation’ or Dutch garlic, is a species of flowering plant native to Iran and KyrgyzstanKew World Checklist of Selected Plant Families but widely cultivated as an ornamental because of its umbels of attractive purple flowers.Pacific Bulb Society, Allium Species TwoLe Jardin de Sophie, Bruxelles, Allium hollandicum ( = A. aflatunense) ail décoratif (alliacée) It is reportedly naturalized in Saint Louis County, Minnesota.BONAP (Biota of North America Project), floristic synthesis, Allium hollandicumFritsch, R.M., Blattner, F.R. & Gurushidze, M. (2010). New classification of Allium L. subg. Melanocrommyum (Webb & Berthel.) Rouy (Alliaceae) based on molecular and morphological characters. Phyton: Annales Rei Botanicae 49: 145-320.
Allium hollandicum is a bulb-forming perennial with scapes up to tall. It has long, flat, strap-shaped leaves up to long. Umbels are relatively small and spherical, up to in diameter, composed of many purple to reddish-purple star-shaped flowers appearing in late spring and early summer.Fritsch, Reinhard M. 1993. Candollea 48(2): 422.Fritsch, R.M., Blattner, F.R. & Gurushidze, M. (2010). New classification of Allium L. subg. Melanocrommyum (Webb & Berthel.) Rouy (Alliaceae) based on molecular and morphological characters. Phyton: Annales Rei Botanicae 49: 145-320.
The popular cultivar 'Purple Sensation' has gained the Royal Horticultural Society's Award of Garden Merit. It prefers moist, fertile soil in full sun.
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