Poaceae
Purple threeawn
Aristida purpurea
Also known as Aristida purpurea, Purple needlegrass, Red threeawn, Aristida brownii
Native Plants · Native-Grass · Drought-Tolerant · Xeriscape · Prairie · Purple · Low-Water · Erosion-Control · Hardy
Purple threeawn is a drought-tolerant native grass that thrives in dry, sandy soils with minimal water requirements. This hardy perennial produces attractive purple-tinged seed heads and is perfect for xeriscaping and prairie restoration projects. Once established, it requires virtually no maintenance and provides excellent erosion control.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water sparingly and allow soil to dry completely between waterings · Every 14-21 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.5–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 2.5 ft
- Spread
- 18 in
- Spacing
- 8 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Arizona, Arkansas, California, Colorado, Cuba, Dominican Republic, Florida, Haiti, Kansas, Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Nevada, New Mexico, Oklahoma, Texas, Utah
- Attracts
- Birds
Sources: trefle, usda
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