Species

Aquilegia caeruleaColorado Blue Columbine

2 other cultivars

perennialN. America Native

Krystal Columbine

Aquilegia caerulea 'Krystal'

The Story

Plant Bio

Aquilegia caerulea, commonly known as Colorado columbine, is a perennial plant native to the Rocky Mountains, featuring unique blue flowers with long spurs.

The cultivar 'Krystal' is a compact, clump-forming perennial noted for its large, upward-facing, pure white flowers with long spurs.

Uses & Benefits:

Aquilegia caerulea 'Krystal' offers elegant, bell-shaped blue flowers that add charm to shaded borders and woodland gardens.

Its drought tolerance makes it suitable for low-maintenance gardens.

Provides nectar for hummingbirds and pollinating insects, supporting local biodiversity.

SpeciesAquilegia caeruleaColorado Blue Columbine

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

All parts are toxic if ingested

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into moist, well-draining soil in early spring for best germination.
Mist cuttings lightly and keep in a shaded area until roots develop, about 4-6 weeks.
Plant in full sun to partial shade with rich, loamy soil for optimal growth.
Water regularly to keep soil moist but not waterlogged, especially during dry spells.
Apply a balanced fertilizer in early spring to promote healthy foliage and blooms.
Divide mature plants in early spring or late fall to rejuvenate growth.

Pro Tip

Use shade cloth during hot summer days to prevent leaf scorch and encourage lush growth.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist 🌱
Deadhead spent flowers to encourage more blooms
Apply mulch to retain soil moisture and suppress weeds
Fertilize in early spring with a balanced fertilizer
Divide clumps every 3-4 years for vigorous growth

Don't

Avoid overwatering which can cause root rot ❌
Do not allow soil to dry out completely
Avoid heavy pruning in late fall or winter
Refrain from using high nitrogen fertilizers that promote leaf growth over flowers
Do not transplant during peak flowering season

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Pest Check
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Delicate border with blue flowersShade garden accentWildflower meadow edge

Companion Plants

SalviaColumbine HostaFerns Bleeding Heart

Multiply

Propagation Methods

Good to Know

Common Questions

Krystal Columbine questions

What zones can Krystal Columbine grow in?

Krystal Columbine is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Krystal Columbine deer resistant?

Yes — Krystal Columbine is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Krystal Columbine bloom?

Krystal Columbine typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Krystal Columbine need full sun?

Krystal Columbine does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.