grassN. America Native

Bottlebrush Grass

Elymus hystrix

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Grass

Height

48 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Low to moderate

Humidity

Adaptable

Lifespan

Short-lived perennial

Native To

Eastern and Central North America

Toxicity

Non-toxic

The Story

Plant Bio

Elymus hystrix is a unique, clump-forming native grass found in woodlands and savannas across eastern and central North America. It is one of the few ornamental grasses that thrives in shady conditions. Its common name comes from the distinctive flower spikes that resemble a bottlebrush, held horizontally from the stem. These spikes provide unusual texture and architectural interest in shade gardens.

Bloom Period:

EarlyLate

Uses & Benefits:

Bottlebrush Grass is a superb textural plant for shade gardens. Its unique, bristly flower spikes, held at right angles to the stems, create a striking architectural effect from summer into fall, adding interest where few other grasses will grow.

It is an excellent choice for stabilizing soil in shady woodland areas and is very low-maintenance once established. Its tolerance for dry shade makes it a valuable problem-solver for planting under mature trees.

This native grass serves as a larval host plant for the Northern Pearly-eye butterfly and several species of skipper. It also provides cover for small wildlife within its clumps.

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Where to Buy

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Planting

How to Grow

Select a location in part to full shade with average soil.
It is adaptable to soil type but prefers good drainage.
Dig a hole slightly larger than the plant's container.
Set the plant in the hole at the same soil level.
Backfill and water thoroughly to settle the soil.
Allow it to self-seed to create a naturalized colony.

Pro Tip

Plant in groups or drifts to maximize the visual impact of its unique, bottlebrush-like seed heads.

Keep It Thriving

Care Guide

Do

Provide shade for best performance.
Allow it to dry out between waterings.
Let it self-sow to perpetuate the planting.

Don't

Don't plant in full, hot sun.
Avoid constantly wet or waterlogged soils.
Don't remove the interesting seed heads until late winter.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Textural element in woodland gardensUnderstory planting beneath deciduous treesNaturalizing in shady, dry areas

Companion Plants

Aquilegia canadensis Polystichum acrostichoides Heuchera villosa Tiarella cordifolia Asarum canadense

Multiply

Propagation Methods

Good to Know

Common Questions

Bottlebrush Grass questions

What zones can Bottlebrush Grass grow in?

Bottlebrush Grass is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Bottlebrush Grass deer resistant?

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

When does Bottlebrush Grass bloom?

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

Does Bottlebrush Grass need full sun?

Bottlebrush Grass does best in part shade.

Is Bottlebrush Grass drought tolerant?

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