Aquilegia vulgaris (Granny's Nightcap)


Botanical Information

FamilyRanunculaceae
GenusAquilegia
Speciesvulgaris
CategoryWildflowers & Weeds
OriginEurope.

Details

USDA Hardiness Zone3 - 8
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 8a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H4
RHS Hardiness Ref.
Temperature (°C)(-32) - (-7)
Temperature (°F)(-25) - 20
Height45-91 cm
Spread30-60 m
Flowering PeriodApril, May

Description and Growing Information

LandscapeBorders, rock or woodland gardens. Excellent addition to a hummingbird garden.
CultivationWell drained, medium moisture soil in full sun to partial shade.
PestsWith downy mildew plants will be deformed in spring from any systemic infection, in summer new infections will arise as yellow patches on the leaves, followed by brownish-red marks on the stems and deformed leaves. There is no chemical available. Picking off the diseased leaves may be effective however some plants may need to be destroyed (burning is best).
Leaf DescriptionGlabrours green with a glaucous underside, 3-lobes.
Flower DescriptionBeautiful flowers in blue, violet, white, pink and red.

Photographs