The Story
Plant Bio
Calamagrostis brachytricha, also known as Korean feather reed grass, is a perennial grass known for its feathery flower plumes and attractive foliage.
It is particularly notable for its late-season interest and its graceful, arching form.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Grass
Height
42 inches
Width
30 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
East Asia
Toxicity
Non-toxic
Bloom period
Late summer – Early fall
In flower about 2 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a sunny location with well-drained soil for planting.
- Tuck seeds or divisions into the soil, spacing them 12-18 inches apart.
- Water thoroughly after planting to settle the soil.
- Mist cuttings regularly to maintain humidity during propagation.
- Apply a light layer of mulch to conserve moisture and suppress weeds.
- Fertilize in early spring with a balanced slow-release fertilizer.
Pro Tip
Ensure good air circulation to prevent fungal issues and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not soggy 🌱
- Prune dead or damaged leaves in early spring
- Mulch annually to retain moisture and control weeds
- Fertilize once in early spring with a balanced fertilizer
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in heavy, poorly-drained clay soil
- Refrain from excessive fertilizing which can cause floppy growth
- Don’t cut back in late fall; wait until early spring
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
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Korean feather reed grass questions
What zones can Korean feather reed grass grow in?
Korean feather reed 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 Korean feather reed grass deer resistant?
Yes — Korean feather reed grass is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Korean feather reed grass bloom?
Korean feather reed grass typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Korean feather reed grass need full sun?
Korean feather reed grass does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Calamagrostis to compare
Karl Foerster Feather Reed Grass
Calamagrostis x hybrida 'Karl Foerster'
feather reed grass
Calamagrostis x acutiflora
Variegated Feather Reed Grass
Calamagrostis arundinacea 'Overdam'
Calamagrostis Avalanche
Calamagrostis x acutiflora 'Avalanche'
Eldorado Feather Reed Grass
Calamagrostis x acutiflora 'Eldorado'
Stricta Feather Reed Grass
Calamagrostis x acutiflora 'Stricta'
Keep exploring
Explore the genus
Grow Korean feather reed grass with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.