Columbine Python (Peter Rühr) / CC BY 3.0
garden

Columbine

Aquilegia

EdibleMedicinalToxic — Use Caution

Overview

Elegant native wildflowers with distinctive spurred petals that look like a gathering of doves — the name columbine derives from the Latin for dove. These woodland perennials come in a rainbow of color combinations and freely hybridize, creating delightful surprises in the garden. Wild red-and-yellow columbine is one of the earliest hummingbird flowers to bloom in spring.

Growing Conditions

LightPartial Sun
MoistureModerate
Hardiness Zones2 — 6
Height0.9m
Spread0.32m
Growth HabitForb/herb
Pollinator Valuehigh

How to Grow Columbine

Columbine (Aquilegia) is a forb/herb that grows to about 3 feet tall and 1 foot wide.

To grow columbine, give it partial sun to partial shade. It is hardy across USDA hardiness zones 2–6. Plant it in moist, well-drained, humus-rich soil in partial shade, at a slightly acidic pH of 5.5–7. It does best with even, moderate watering.

Exact sowing, transplanting, and harvest months shift by climate zone — the planting calendar below lays them out for cool through hot regions. Its flowers appear from March through July, offering high value to pollinators. Food and forage in one stand — plant it where both you and the pollinators can reach.

Companion Planting & Soil

Columbine grows well alongside hosta, fern, bleeding heart, and coral bells.

Good Companions

HostaFernBleeding heartCoral bells
Soil pH5.5 — 7
Soil TypeMoist, well-drained, humus-rich soil in partial shade

Planting Calendar

When to sow, transplant, and harvest by growing zone.

ZoneActionMonthsNotes
Cold (1-2) Direct Sow Sep — Oct Fall sow outdoors for cold stratification; or sow indoors after 3 weeks in fridge
Cold (1-2) Bloom May — Jul Spring/early summer bloom; first major hummingbird flower of the season
Cool (3-4) Direct Sow Sep — Oct Fall sow; seeds need cold period; native A. canadensis best for hummingbirds
Cool (3-4) Bloom May — Jun Late spring bloom; nodding flowers attract hummingbirds and long-tongued bees
Moderate (5-7) Transplant Mar — Apr Transplant nursery plants in spring; self-sows freely once established
Moderate (5-7) Bloom Apr — Jun Spring bloom; let seed heads ripen for self-sowing; short-lived perennial
Warm (8-9) Transplant Feb — Mar Plant in late winter; afternoon shade preferred
Warm (8-9) Bloom Mar — May Early spring bloom; fades in heat
Hot (10+) Transplant Nov — Dec Plant in fall; needs shade; short-lived in hot climates
Hot (10+) Bloom Feb — Apr Late winter/spring bloom; annual or short-lived perennial

Uses

Beyond the Garden

Columbine earns its keep past the plate, too: early-spring hummingbird nectar source; self-seeding woodland garden perennial; beautiful cut flower in spring bouquets.

Safety Notes

Although no records of toxicity have been seen for this species, it belongs to a family that contains a number of mildly toxic species. It is therefore wise to exercise some caution. The flowers are probably perfectly safe to eat.