Species

Veronicastrum virginicumCulver's root

4 other cultivars

perennial RHS AwardN. America Native

White Culver's Root

Veronicastrum virginicum 'Album'

The Story

Plant Bio

A perennial with upright stems and whorled leaves, known for its tall white flower spikes.

The 'Album' cultivar stands out for its pure white flowers and distinctive appearance compared to other varieties.

Uses & Benefits:

Provides tall, elegant white flower spikes that attract pollinators and add vertical interest to borders.

Requires minimal maintenance once established, tolerates drought conditions.

Supports native pollinators like bees and butterflies, enhancing garden biodiversity.

SpeciesVeronicastrum virginicumCulver's root

Essentials

At a Glance

Plant Type

Perennial

Height

60 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Prefers moderate humidity

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Choose a sunny location with well-draining soil for planting.
Tuck seeds just beneath the soil surface and water gently.
Mist cuttings regularly to maintain humidity and promote rooting.
Transplant seedlings after the last frost, typically in spring.
Fertilize with a balanced fertilizer in early spring and mid-summer.
Prune back after flowering to encourage bushier growth.

Pro Tip

Use organic compost to enrich soil and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water regularly during dry periods 💧
Mulch around plants to retain moisture and suppress weeds
Prune dead or damaged stems after flowering
Fertilize in early spring for vigorous growth

Don't

Avoid overwatering to prevent root rot ❌
Don't neglect pruning which encourages bushiness
Avoid planting in poorly drained soils
Refrain from fertilizing late in the season

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Prune
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tall, silvery-flowered borderWildflower meadow accentInformal cottage garden feature

Companion Plants

Echinacea purpurea Rudbeckia hirta Monarda didymaJoe Pye Weed Swamp Milkweed

Multiply

Propagation Methods

Good to Know

Common Questions

White Culver's Root questions

What zones can White Culver's Root grow in?

White Culver's Root 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 White Culver's Root deer resistant?

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

When does White Culver's Root bloom?

White Culver's Root typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does White Culver's Root need full sun?

White Culver's Root does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.