Cold-Desert Phlox
Phlox stansburyi
- Native to:
- United States
Walcott, Mary Vaux






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Polemoniaceae
- Genus:
- Phlox
- Species:
- Phlox stansburyi
- USDA Symbol:
- PHST11
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Subshrub
- Height:
- 20 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- pink, white, lavender
- Ground Cover:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, hummingbirds, bees
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from root crown following fire; common in fire-prone desert scrub and pinyon-juniper communities.
Soil Requirements
- Soil Type:
- rocky, well-drained sandy soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid regions, prefers dry conditions
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold stratification; surface sow as light may aid germination.
The above propagation data sourced from Claude AI