Pipestem Clematis
Clematis lasiantha
- Native to:
- Mexico, United States
iNaturalist: © ddonovan17 (iNaturalist #75016755)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ranunculaceae
- Genus:
- Clematis
- Species:
- Clematis lasiantha
- USDA Symbol:
- CLLA3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Vine
- Height:
- 600 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- mar,apr,may,jun
- Bloom Colors:
- white, cream
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)
Reported Fauna Sightings
Butterflies:Echo Azure (Celastrina echo)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, birds
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from root crown following fire; common in chaparral and oak woodland communities with periodic fire regimes.
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to chaparral and coastal scrub areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–180 days
- Notes:
- Germination can be erratic and slow. Seeds benefit from cold stratification and may take several months to germinate.
The above propagation data sourced from Claude AI
Pre-treatment: Seed germination is stimulated by the presence of charred wood or aqueous extracts of it.
Establishment: C. lasiantha is found within mattoral vegetation association of California.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 4C for 3 months, then place @ 20C for 3 months.