
Mexican Feather Grass
Stipa tenuissima 'Ponytails'
Essentials
At a Glance
Plant Type
Grass
Height
24 inches
Width
12 inches
Light
Full Sun
Zones
7, 8, 9
Water
Low
Humidity
Average
Lifespan
Perennial (often grown as an annual)
Native To
Southwestern US, Mexico, Argentina
Toxicity
Non-toxic
The Story
Plant Bio
Nassella tenuissima (formerly Stipa tenuissima) is an ornamental grass characterized by its very fine, thread-like green leaves and delicate, feathery flower panicles that sway gracefully in the breeze. This cultivar is celebrated for its fine, hair-like plumes that add a soft, airy texture to garden borders and containers, creating a graceful, flowing appearance.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring.
- Water lightly until established, about 2 weeks.
- Mist cuttings if propagating via division in spring.
- Allow soil to dry between watering during summer.
- Trim back dead foliage in late winter.
- Divide clumps every 3-4 years for best growth.
Pro Tip
Use well-draining soil and avoid overwatering for best results.
Keep It Thriving
Care Guide
Do
- Water sparingly once established 💧
- Trim dead foliage in late winter ✂️
- Divide every 3-4 years for vigorous growth
- Plant in full sun for optimal performance
Don't
- Overwater, which can cause root rot ❌
- Plant in heavy clay soil without amendments
- Allow soil to stay constantly wet
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| 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
Mexican Feather Grass questions
What zones can Mexican Feather Grass grow in?
Mexican Feather Grass is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Mexican Feather Grass deer resistant?
Not reliably. Deer may browse Mexican Feather Grass, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Mexican Feather Grass bloom?
Mexican Feather Grass typically blooms in late spring to early summer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Mexican Feather Grass need full sun?
Mexican Feather Grass does best in full sun (6+ hours).
Is Mexican Feather Grass drought tolerant?
Yes — once established (usually after the first full season), Mexican Feather Grass handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Stipa to compare

Silver Spear Grass
Stipa calamagrostis

Mexican Feather Grass
Stipa tenuissima

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Stipa barbata

Purple Needlegrass
Stipa pulchra

Giant Feather Grass
Stipa gigantea

Nodding Needlegrass
Stipa cernua
