
Purple Fountain Grass
Pennisetum setaceum 'Purple Fountain Grass'
Essentials
At a Glance
Plant Type
Grass
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
9
Water
Moderate once established
Humidity
Average
Lifespan
Tender perennial, grown as an annual
Native To
Africa, Middle East
Toxicity
Non-toxic
The Story
Plant Bio
Pennisetum setaceum, commonly known as Purple Fountain Grass, is a clump-forming perennial grass with arching, finely textured leaves and striking purple flower plumes that resemble a fountain of color. This cultivar is distinguished by its vibrant purple flower spikes, which add dramatic color and movement to garden landscapes, thriving best in full sun with well-drained soil.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or cuttings into well-draining soil in spring.
- Water regularly until established, about 6 weeks.
- Place in full sun for best growth and color.
- Fertilize with balanced fertilizer monthly during growing season.
- Divide clumps every 2-3 years in early spring.
- Cut back old foliage in late winter or early spring.
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Prune dead or damaged foliage in late winter
- Apply mulch to retain soil moisture
Don't
- Overwater, avoid soggy soil ❌
- Don’t fertilize excessively in fall
- Avoid heavy pruning in late summer
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Plant | ||||||||||||
| 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
Purple Fountain Grass questions
What zones can Purple Fountain Grass grow in?
Purple Fountain Grass is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Purple Fountain Grass deer resistant?
Not reliably. Deer may browse Purple Fountain Grass, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Purple Fountain Grass bloom?
Purple Fountain Grass typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Purple Fountain Grass need full sun?
Purple Fountain Grass does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Purple Fountain Grass drought tolerant?
Yes — once established (usually after the first full season), Purple Fountain 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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