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Aquilegia formosa

Common Name(s):

Western Columbine

Crimson Columbine

Synonym:

Aquilegia fosteri

Sitka Columbine

Flower:

Red

Blooms :

May

to:

Aug

Pendant, red and yellow, 2" across with straight spurs and golden stamens

Botanical Description

Fragrant?

NO

Family:

Ranunculaceae

Herbaceous Plant, Perennial

Foliage:

Green

Basal and lower stem leaves on long petioles divided 2-3 times, upper leaves sessile or nearly so.

Fall Color?

NO

​

Deciduous

Photo by: 

Heading 6

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Oregon Native?

YES

West State Native?

YES

Origins:

Native to western North America

Site Selection

Minimum USDA Hardiness Zone:

3

Water Needs:

M

Sun Needs:

Partial Sun

Deer Resistant?

YES

Firewise?

YES

Height:

1.5' to 3'

Spread:

20-24"

Growth Rate:

Fast

Native Habitat:

Can be found in a wide variety of habitats within its native range (coastal AK down through Canada , south to Baja and eastward to MT, WY, UT)..

Soil:

Average, medium moisture, well-drained. Rich moist soils in part shade are preferred.

Care Recommendations

Maintenance Level:

Low

Fertilizer:

Requires no fertilizer

Mulch:

2-3" layer of shredded leaves

Give good air circulation, allow to seof seed, deadhead, if looks straggly in summer can cut back

Long Term:

Winter:

Ensure soil drains well, add mulch to protect crown

Spring:

Give a balanced slow-release fertilizer or top dress with compost, keep soil consistently moist, add mulch, monitor for pests

Summer:

Water deeply every 8-15 days, provide filtered sun, snip off spent flowers

Fall:

Cut to ground when foliage declines

General Care Comments:

Prefers light partial shade, rich loamy soil, keep soil moist, deadhead but let the last flowers of the season go to seed

Common Problems

Foliage may look ratty by early sunner

Diseases:

Powdery mildew, Grey mold, root and crown rot

Insects:

Columbine leafminers, Columbine sawfly, aphids, spider mites

Environmental Problems:

Dislikes poorly drained soils

Pests:

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COMGA

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