perennial

Havana Snakeroot

Eupatorium havanense

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

54 inches

Width

54 inches

Light

Full Sun, Partial Sun

Zones

8, 9

Water

Low; drought tolerant once established

Humidity

Prefers moderate humidity

Lifespan

Perennial

Native To

Southern Texas, Mexico, West Indies

Toxicity

Contains compounds that can be toxic if ingested in large quantities.

The Story

Plant Bio

Ageratina havanensis, commonly known as Havana Snakeroot, is a perennial sub-shrub with a bushy, rounded habit. It features ovate, toothed, green leaves and produces abundant clusters of small, fragrant, fluffy white flowers from late summer into fall, which are highly attractive to butterflies. This species is highly valued for its exceptional drought tolerance, deer resistance, and profuse, fragrant, late-season blooms that provide a vital nectar source for pollinators when other flowers are fading. It thrives in well-drained, rocky, or poor soils.

Uses & Benefits:

Provides attractive white flowers that attract pollinators and add visual appeal to gardens.

Drought-tolerant, requires minimal watering once established.

Supports local pollinator populations, including bees and butterflies.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck seeds into well-draining soil in spring.
Water regularly until established, about 6 weeks.
Place in full sun for best flowering.
Fertilize monthly during growing season.
Prune back after flowering to encourage new growth.
Mulch around base to retain moisture.

Pro Tip

Ensure good drainage to prevent root rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 🌱
Prune to shape after flowering
Fertilize in spring and summer

Don't

Overwater to avoid root rot ❌
Ignore pruning after flowering ❌
Use heavy soil amendments

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pinch
Plant
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Pollinator-friendly borderWildflower meadow accentDrought-tolerant perennial bed

Companion Plants

Echinacea Black-eyed Susan Russian Sage Yarrow Lavender

Multiply

Propagation Methods

Good to Know

Common Questions

Havana Snakeroot questions

What zones can Havana Snakeroot grow in?

Havana Snakeroot is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Havana Snakeroot deer resistant?

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

When does Havana Snakeroot bloom?

Havana Snakeroot typically blooms in late summer to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Havana Snakeroot need full sun?

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

Is Havana Snakeroot drought tolerant?

Yes — once established (usually after the first full season), Havana Snakeroot handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.