Rosa waitziana

Rosa × kosinsciana

Native to:
Austria, Czechia-Slovakia, France, Germany, Hungary

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Rosa
Species:
Rosa × kosinsciana
USDA Symbol:
ROWA5

Growth Characteristics

Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul
Bloom Colors:
pink, white
Landscaping Shrub:
Yes

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
birds, bees, butterflies
Fragrant:
Yes

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
30–180 days
Notes:
Rose seeds have variable dormancy; cold stratification improves germination rates. Germination can be erratic.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Requires scarification. Nick or rub between sheets of sandpaper. Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. 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; plant at 32°C for 2-3 weeks, then 4°C for 4 months

Source: Ontario Rock Garden & Hardy Plant Society