Species

Miscanthus sinensisChinese Silver Grass

23 other cultivars

grass

Kirk Alexander Japanese Silver Grass

Miscanthus sinensis 'Kirk Alexander'

The Story

Plant Bio

Miscanthus sinensis 'Kirk Alexander' is a tall, perennial grass known for its graceful arching foliage and feathery flower plumes that display silvery-white to pinkish hues in late summer and autumn.

This cultivar is distinguished by its compact, upright habit and striking green leaves marked with horizontal, creamy-yellow bands. It produces reddish-bronze flower plumes in late summer.

Uses & Benefits:

Adds texture and movement to garden with its shimmering plumes.

Erosion control and natural weed suppression.

Provides habitat and food for birds and beneficial insects.

SpeciesMiscanthus sinensisChinese Silver Grass

Essentials

At a Glance

Plant Type

Grass

Height

48 inches

Width

30 inches

Light

Full Sun

Zones

5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Asia

Toxicity

Non-toxic

Bloom period

Late summer – Late fall

In flower about 4 months of the year

Planting

How to Grow

Tuck seeds or divisions into well-prepared soil in early spring.
Water regularly until established, about 6 weeks.
Mist cuttings lightly to encourage root growth.
Plant in full sun for best foliage and flowering display.
Mulch around base to retain moisture and suppress weeds.
Divide every 3-4 years in early spring to maintain vigor.

Pro Tip

Plant in full sun and well-drained soil for best growth and appearance.

Keep It Thriving

Care Guide

Do

Water during dry spells 🌱
Prune back in late winter to encourage fresh growth
Divide every 3-4 years to prevent overcrowding
Apply mulch to retain moisture

Don't

Avoid overwatering ❌
Don’t cut in late fall, wait until early spring
Don’t plant in poorly drained soil
Avoid excessive fertilizing to prevent legginess

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Reedy border with shimmering plumesErosion control on slopesWildlife-friendly meadow edge

Companion Plants

Sedum EchinaceaBlack-eyed Susan Ornamental grasses Lavender

Multiply

Propagation Methods

Good to Know

Common Questions

Kirk Alexander Japanese Silver Grass questions

What zones can Kirk Alexander Japanese Silver Grass grow in?

Kirk Alexander Japanese Silver Grass is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Kirk Alexander Japanese Silver Grass deer resistant?

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

When does Kirk Alexander Japanese Silver Grass bloom?

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

Does Kirk Alexander Japanese Silver Grass need full sun?

Kirk Alexander Japanese Silver Grass does best in full sun (6+ hours).

Is Kirk Alexander Japanese Silver Grass drought tolerant?

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