Allium hollandicum 'Purple Sensation' (Flowering Persian Onion, Dutch Garlic)


Botanical Information

FamilyAmaryllidaceae
GenusAllium
Specieshollandicum
Cultivar'Purple Sensation'
SynonymsAmaryllidaceae Allium aflatunense 'Purple Sensation'
CategoryBulbs, Perennials
Pronunciation

Details

USDA Hardiness Zone4-9
USDA Hardiness Ref.
Canadian Hardiness Zone5
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Height100 cm
Spread7 cm
GrowthFast
Flowering PeriodMay, June, July

Description and Growing Information

General DescriptionA bulbous herbaceous perennial to 90 cm, with short basal leaves dying down by flowering time. Flowers small, vivid rosy-purple, in crowded spherical umbels. Attractive seed heads.
PropagationPropagate by offsets, removed when dormant or by seed in spring at about 13°C (55°F). Keep moist and well ventilated, and dry progressively as foliage dies back. Prick out and pot on when dormant. Seed grown plants, however, may not come true to the parent. Alternatively divide clumps of spring flowering species in summer.
CultivationGrow in fertile, well-drained soil in full sun. Plant bulbs 5-10 cm deep in autumn.
PestsAlliums are susceptible to white rot, downy mildew and onion fly.
Notable SpecimensThe A.M. Cuddy Gardens, Strathroy, Ontario, Canada.
HabitatHorticultural origin.
Leaf DescriptionLong, strap-shaped, grey-green basal leaves 30-60 cm long.
Flower Description8 cm umbels of 50 or more star-shaped, deep violet flowers.

Photographs