White alder is a fast deciduous tree to 20' first years then slower to 50 ft.. Native to moist canyons on the west coast. A nice- looking and fragrant shade tree. It likes sun and water. It is not drought tolerant, but very fast, to 30 feet in 5-6 years. Its shade is rather dense(cool) to garden under unless you work at opening up the limb structure and even then it is very competitive. In the wild places we have seen there are almost no understory plants growing near white alder. This tree is a nitrogen fixing plant. This tree will grow right in the creek bed with the water flowing around it. Useful for that wet spot that everything else drowns in.
Alnus rhombifolia tolerates sand, clay, no drainage and seasonal flooding.
Alnus rhombifolia is great for a bird garden and a butterfly garden.
Foliage of Alnus rhombifolia has color lt-green, is deciduous and has fragrance.
Flower of Alnus rhombifolia has color na.
Communities for Alnus rhombifolia:Chaparral, Douglas Fir Forest, Mixed-evergreen Forest, Northern Oak Woodland, Redwood Forest, Riparian (rivers & creeks), Southern Oak Woodland and Yellow Pine Forest.