Joseph Rock American mountain ash
Sorbus 'Joseph Rock'
USDA zones7 to 8
SunNeeds full sun (6+ hours)
WaterHandles moderate to moist soil
Size15 to 30 feet tall6 to 20 feet wide
- Bloom season
- Spring, summer, autumn
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, neutral
Garden uses
Notes
'Joseph Rock' American mountain ash (Sorbus 'Joseph Rock') is a tree for borders and low maintenance planting. It is hardy to USDA zone 7, or down to 0°F (-18°C). This plant likes full sun and average to moist, sandy, loamy, or clay soil. It grows 181 to 358 inches tall and 71 to 240 inches wide, so give it plenty of room.
Pairs well with Yakushima Dwarf eulalia, Arendsii azure monkshood, and Alpine aster.