perennial

White Snakeroot

Eupatorium rugosum

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Highly toxic to humans and animals if ingested

The Story

Plant Bio

Eupatorium rugosum, commonly known as White Snakeroot, is a perennial herb with ovate green leaves and clusters of small, white, fluffy flowers that form dense, rounded inflorescences in late summer. This species is notable for its toxicity if ingested and its ability to attract pollinators such as bees and butterflies, making it valuable for wildlife gardens.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides late-summer to fall interest with its fuzzy foliage and white flowers, attracting pollinators.

Native plant that supports local ecosystems and requires minimal maintenance.

Attracts bees, butterflies, and birds, promoting biodiversity.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds or divisions into prepared soil in early spring.
Water regularly to keep soil moist but not waterlogged.
Fertilize with a balanced fertilizer in spring for best growth.
Mulch around the base to retain moisture and suppress weeds.
Prune back after flowering to encourage bushiness and new growth.
Divide clumps every 3-4 years in early spring for rejuvenation.

Pro Tip

Plant in full sun for optimal flowering and growth.

Keep It Thriving

Care Guide

Do

Water consistently during dry spells 🌱
Prune after flowering to maintain shape
Mulch to conserve moisture and reduce weeds

Don't

Avoid overwatering to prevent root rot ❌
Do not cut back in late fall
Avoid fertilizing late in the season

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Prune
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower meadow borderPollinator-friendly borderLate-season perennial bed

Companion Plants

Echinacea purpurea Rudbeckia hirta Solidago spp. Asters

Multiply

Propagation Methods

Good to Know

Common Questions

White Snakeroot questions

What zones can White Snakeroot grow in?

White Snakeroot 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 Snakeroot deer resistant?

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

When does White Snakeroot bloom?

White Snakeroot 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 Snakeroot need full sun?

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