Mexican feather grass
Nassella tenuissima
Essentials
At a Glance
Plant Type
Grass
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8
Water
Low to moderate
Humidity
Adaptable
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Nassella tenuissima, commonly known as Mexican feather grass, is a perennial grass known for its delicate, feathery texture and graceful appearance. This species is particularly notable for its fine, flowing foliage that resembles feathers and catches the light beautifully.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings or sow seeds on the soil surface, keeping moist until established.
- Water regularly during the first growing season to promote root development.
- Fertilize lightly in spring with a balanced, slow-release fertilizer.
- Thin out overcrowded plants to improve air circulation and reduce disease.
- Divide clumps in early spring or fall to propagate new plants.
Pro Tip
Use sandy or loamy soil with good drainage to prevent root rot and ensure healthy growth.
Keep It Thriving
Care Guide
Do
- Water deeply but infrequently to mimic natural rainfall 🌱
- Prune dead or damaged blades to maintain tidy appearance
- Apply a light mulch to retain soil moisture
Don't
- Avoid overwatering which can lead to root rot ❌
- Don’t mow too low—leave some height for protection
- Refrain from fertilizing with high nitrogen in late fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Spring Cleanup |
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 5–8. 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?
Yes — Mexican feather grass is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Mexican feather grass bloom?
Mexican feather 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 Mexican feather grass need full sun?
Mexican feather grass does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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.
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See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
