Also known as Needlegrass · 150 saves
Nassella
Nassella, the genus most gardeners know as needlegrass. We track 3 varieties; the ones most used by real gardeners.
The 2 most-saved Nassella varieties
Browse all 3 Nassella varieties →
Species of Nassella
Each one is a parent of the varieties above.
Track your Nassella in Sow
Save the Nassella you grow and get care reminders timed to your zone.
How to grow Nassella
Whats common across all Nassella varieties in our catalog — drawn from the care records of the 3 most-grown of them.
The Nassella year
- DivideMarch and April100% of varieties
Divide clumps in early spring every few years if desired.
- DeadheadJuly and August100% of varieties
Shear off flower heads after blooming to prevent aggressive self-seeding.
- PruneJanuary and February67% of varieties
Cut back to a few inches from the ground in late winter before new growth starts.
Do
- Water moderately during dry periods 🌱
- Prune back in late winter to maintain shape
- Mulch around base to retain moisture
- Divide every few years for health
- Water regularly during dry spells 🌱
Avoid
- Overwater, which can cause root rot ❌
- Plant in poorly drained soil
- Allow to become overly dense
- Neglect pruning and division
What goes wrong with Nassella
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue and distorted leaves | Use neem oil or insecticidal soap |
| Root rot | Wilting and blackened roots | Improve soil drainage and reduce watering |
| Rust | Orange pustules on leaves | Apply fungicide and remove infected leaves |
| Fungal rust | Orange pustules on leaves | Apply fungicide and remove affected foliage |
Making more Nassella
Seed
- Tuck seeds into moist soil in early spring.
- Keep soil consistently moist for 4-6 weeks.
- Germination occurs within 2 weeks.
Division
- Dig up mature clumps in early spring.
- Divide using a sharp knife or spade into sections.
- Replant divisions immediately in prepared soil.
Nassella questions
How many types of Nassella are there?
The Sow catalog tracks 3 distinct Nassella varieties. The most popular — ranked by 150 real gardeners — are shown first above.
What zones does Nassella grow in?
Across its varieties, Nassella covers USDA Zones 5–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Nassella bloom?
Most Nassella varieties bloom in late summer, late spring to early summer. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Nassella should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.