Science · Turfgrasses
Roughstalk Bluegrass
Moisture-favoring grass useful in some shaded cool sites but often an unwanted patch-former.
Poa trivialis · Cool-season stoloniferous grass
Profile
- Spread
- Aboveground stolons
- Site
- Favors cool moist and shaded conditions
- Roots
- Shallow-rooted relative to many lawn grasses
- Summer
- Often declines in heat and drought
Water & soil targets
- Moisture (VWC)
- Site-calibrated; measure field capacity and dry-down
- Salinity tolerance
- Low to moderate; verify identified species
- Drought tolerance
- Limited under heat and shallow rooting
Optimal root measurement depth
1–3 in
Putting-green and fine-turf roots are short, especially in summer; read shallow. Typical guidance; confirm with a soil probe on site.
Calibrate sensors in the actual root zone; account for mowing, rooting depth, seasonal growth and drainage before adjusting irrigation.
Problems to watch
- Summer dormancy or death
- Patch invasion
- Wet-site disease
Stress signs
- Light-green patches
- Brown patches in heat
- Matted weak stems
Where you'll find it
- Cool moist shade cover
- Specialized winter overseeding
More turfgrasses
All Science profilesGeneral agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.