Alpine Bur Cucumber 🛑 Endangered
Sicyos macrophyllus
- Native to:
- Hawaii, United States
Forest & Kim Starr (www.hear.org)



Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cucurbitaceae
- Genus:
- Sicyos
- Species:
- Sicyos macrophyllus
- USDA Symbol:
- SIMA6
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb , Vine
- Height:
- 600 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jul,aug,sep,oct
- Bloom Colors:
- white, green
Garden & Ecology Notes
- Wildlife Value:
- birds
Soil Requirements
- Soil Type:
- rich, well-drained volcanic soil
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- native to volcanic regions with high organic matter
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 14–30 days
- Notes:
- Scarification of the hard seed coat improves germination rates. Seeds benefit from cold stratification.
The above propagation data sourced from Claude AI