Rosa pisocarpa subsp. ahartii
Rosa pisocarpa subsp. ahartii
Ahart's rose is an extremely rare subspecies of cluster rose endemic to a limited range in California and Oregon, making it a prized find for native plant enthusiasts. It prefers moist, well-drained soils in partial shade and benefits from consistent watering during dry summer months. Handle with care and source only from reputable native plant nurseries to support conservation efforts.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
36″ – 120″
Soil
loam
Life Cycle
Perennial
Spacing
36″
Watering Schedule
Every 7-14 Days • Water At The Base Until Soil Is Evenly Moist, Allowing The Top 2 Inches To Dry Between Waterings
Soil pH
5 – 7.3
Temperature
-40° – 95°F
Mature Spread
up to 80″
Root Depth
Medium
Foliage
Coarse
Native to
Attracts
Sources
Data: trefle, usda
No nurseries currently have this species in stock.