Rosa laa
Rosa laxa
- Native to:
- China, Kazakhstan, Kirgizstan, Russia
dryomys (www.inaturalist.org)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Rosaceae
- Genus:
- Rosa
- Species:
- Rosa laxa
- USDA Symbol:
- ROLA5
Growth Characteristics
- Height:
- 200 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul
- Bloom Colors:
- white, pink
- Landscaping Shrub:
- Yes
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, butterflies, small mammals
- Fragrant:
- Yes
- Fall Color:
- red, orange
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 rocky slopes and open areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–90 days
- Notes:
- Seeds benefit from cold stratification for 2-3 months to break dormancy.
ORGHPS Germination Guide: Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * soak in hot water for 24 hours to scarify