Fritillaria imperialis (Crown Imperial, Kaiser's Crown)


Michael's Opinion

A spectacular early spring bulb for the border.

Botanical Information

FamilyLiliaceae
GenusFritillaria
Speciesimperialis
CategoryBulbs, Perennials
OriginAcross the plateau of Iran to Afghanistan, Pakistan and the Himalayan foothills.

Details

USDA Hardiness Zone6a - 6b
USDA Hardiness Ref.
Canadian Hardiness Zone6a - 6b
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Height1 m
Spread25 cm
GrowthFast
Flowering PeriodApril

Description and Growing Information

General DescriptionErect robust perennial bulb with a slight 'skunk' smell.
ID CharacteristicErect stems topped with sword shaped leaves and umbel of bell-shaped orange flowers beneath a crown of bracts.
LandscapeInformal and cottage gardens.
PropagationBy seed, sown in cold frame pots which need exposure to winter cold for germination. Or by offsets from the bulbs when the plants are dormant.
CultivationDue to the way that the bulb is formed, with the stem emerging from a depression, it is best to plant it on its side, to prevent water causing rot at the top of the bulb. Fritillaria imperialis requires full sun for best growth, and sandy, well-drained soil for permanence. After flowering and complete drying of the leaves, the stems should be cut off just above the ground.
PestsSquirrel resistant due to the bulbs slightly 'skunky' smell.
HabitatRough terrain across the plateau of Iran to Afghanistan, Pakistan and the Himalayan foothills. Often in very dry to moist conditions and found growing in moist conditions in association with Rumex species.
Leaf DescriptionLance shaped, glossy leaves.

Photographs