alder
Alnus mayrii
USDA zones4 to 7
SunHandles full sun to partial sun
WaterHandles moderate or wet soil
Size30 to 50 feet tall20 to 40 feet wide
- Bloom season
- Spring
- Bloom color
- Yellowish-brown (male) purple (female)
Garden uses
Notes
Alder (Alnus mayrii) is a tree for shade gardens and rain gardens. It is hardy to USDA zone 4, or down to -30°F (-34°C). This plant likes full or part sun and average to wet soil. It blooms in early spring with yellowish-brown male catkins and purple female ones. The tree grows 30 to 50 feet tall and spreads 20 to 40 feet wide, so give it plenty of room.
Pairs well with River birch, Joe-pyeweed, Cinnamon fern, and Bottlebrush buckeye.
Native range
Korea and China.