Summer Holly
Comarostaphylis diversifolia
- Native to:
- Mexico, United States
iNaturalist: © leptonia (iNaturalist #10362095)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ericaceae
- Genus:
- Comarostaphylis
- Species:
- Comarostaphylis diversifolia
- USDA Symbol:
- CODI3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 600 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- white, pink
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Hummingbirds:
- ★☆☆☆☆ Documented hummingbird visits (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- birds, mammals
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from root crown following fire; typical of California chaparral species.
Soil Requirements
- Soil Type:
- rocky, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to chaparral and coastal scrub habitats
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–90 days
- Notes:
- Germination can be erratic; fire or smoke treatment may improve rates.
The above propagation data sourced from Claude AI
Pre-treatment: Dry heat treatment at 70 C for 1 minute
Establishment: Dry heat treatment at 70 C for 1 minute resulted in decreased germination. The plant is found within the mattoral vegetation association of California.
Source: npn.rngr.net