Science · Turfgrasses
Perennial Ryegrass
Germinates in days and handles traffic well — used alone up north and for overseeding dormant bermuda in winter.
Lolium perenne · Cool-season turfgrass
Profile
- Climate
- Cool-season; overseed in the south
- Sun
- Full sun
- Mowing height
- 0.5–2.5 in
- Spread
- Bunch-type; no runners
- Establishment
- Very fast (5–10 days)
- pH
- 6.0–7.0
Water & soil targets
- Moisture (VWC)
- ~20–30%
- Salinity tolerance
- Moderate
- Drought tolerance
- Moderate
Seedbeds must stay evenly moist during establishment.
Problems to watch
- Gray leaf spot
- Pythium blight
- Red thread
- Crown rust
Stress signs
- Dark-green wilting
- Patchy thinning after heat
Where you'll find it
- Winter overseeding
- Sports fields
- Golf tees and fairways
More turfgrasses
All Science profilesGeneral agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.