River Birch Zone 9

They grow naturally in wet environments along river and stream banks so they are used to very moist soil.
River birch zone 9. River birch trees betula nigra are hardy in usda zones 4 through 9. This species is resistant to bronze birch borer bbb. It will grow 2 feet a year and even 3 feet a year in warmer areas so it rapidly matures into an attractive specimen. The tree thrives in moist conditions hence the name river birch.
They are at their best in hardiness zones 4 through 7 but will grow to zone 9 based on the united states agricultural department hardiness zone map. River birch betula nigra as its name suggests the river birch naturally grows along riverbanks. River birch is a popular fast growing native tree for the home landscape. As its name suggests the river birch naturally grows along river banks.
The branches of the tree tend to droop. Attractive salmon pink to reddish brown bark exfoliates to reveal lighter inner bark. The dura heat river birch is an improved version of the native american tree called river birch and it is a charming medium sized tree that usually grows to 30 or 40 feet height. But as a landscape tree it can be planted almost anywhere in the u s.
They are more heat tolerant than most of their birch relatives making them a good choice in many parts of the southern u s. The species is valued for its relatively rapid growth tolerance of wetness and some drought unique curling bark spreading limbs and relative resistance to birch borer.