Phacelia crenulata

Phacelia crenulata

Desert bluebells

Very drought tolerant, spring blooming annual. Full sun. Found on gravelly or well-drained soils below 4,000 ft. elevation throughout the desert southwest. Arizona's most abundant species. Violet to deep purple flowers, rarely white.

Varieties: 

Species Attributes

Height: 
- 36 
in.
Life Form: 
Annual
Native or Introduced: 
Native
Precipitation: 
Low
Sun & Shade Tolerance: 
Full Sun
Elevation: 
- 4,000 
ft.

Soil Texture

Coarse: 
Best
Moderately Coarse: 
Best
Medium: 
Average
Moderately Fine: 
Marginal
Fine: 
Not Adapted

Soil pH

Acidic: 
Average
Neutral: 
Best
Basic: 
Average
Seeding Rate: 
- 3 
PLS lbs/Acre
Pure Seed per Bushel: 
20.30 lbs.
Seeds per Pound: 
800,000
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes
Bloom Color: 
Violet to Purple
Blooming Season: 
Spring