Olney's Dry Rock Moss
Grimmia olneyi
- Native to:
- United States
iNaturalist: © alexgraeff (iNaturalist #22062515)

Taxonomy
- Division:
- Bryophyta | - Mosses
- Family:
- Grimmiaceae
- Genus:
- Grimmia
- Species:
- Grimmia olneyi
- USDA Symbol:
- GROL
Growth Characteristics
- Growth Habit:
- Nonvascular
- Height:
- 2 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
Garden & Ecology Notes
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rocky, well-drained, nutrient-poor substrate
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- commonly found on exposed rock surfaces