Phlox diffusa
Cascade Phlox · Mat Phlox · Spreading Phlox
About the plant
What it is and where it grows — not part of any germination protocol.
The plant
- Habit
- subshrubPlants of the World Online
- Habit
- Perennial, Forb/herb, SubshrubPLANTS Database
- Height
- 0.5 ft15 cmPLANTS Database
- Flower
- PurplePLANTS Database
- Blooms
- Late SpringPLANTS Database
- Native range
- Canada, lower 48 statesPLANTS Database
Growing conditions
- Sun
- Shade tolerance: LowPLANTS Database
- Soil
- Adapted to coarse, medium textured soilsPLANTS Database
- Soil pH
- 6.5-8.5PLANTS Database
- Moisture
- Moisture use: LowPLANTS Database
- Watering
- Drought tolerance: HighPLANTS Database
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS.
Worth knowing
- Spreading phlox forms compact mats and cushions. It grows in many habitats, among them rocky high mountain slopes, from British Columbia to the southwestern United States and the Dakotas. Wikipedia: Phlox diffusa
Protocol
DerivedN. C. Deno, 1993Difficulty High
Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 49 days to germinate.
25% germination in 49 days.
How each step is done, in Deno’s words, and what Verified and Derived mean.
Germination trials
Readers’ own records of sowing this species, published after review. Share your trial · All trials
No trials shared for this species yet.