River Birch
 

Betula Nigra
Common Name:
River Birch

River Birch is a very fast growing native tree, and the peeling bark is lovely. The River Birch's native habitat is on the river banks. It is often the choice for  problematic low areas of property to improve standing water issues. It is rare that it can receive too much water. 

The gracefully branched river birch is a 30-50 ft. usually multi-trunked tree which can reach 90 ft. in height. Often slightly leaning and forked tree with irregular spreading crown.

Unlike other kinds of birch tree, the fruits of the River Birch mature in the spring following flowering. The trunk of this tree often is short, branching into several large limbs that grow upward.

This species will work in the outer rows of multi-row windbreaks or for sun and wind reduction closer to home where the tree's year-round beauty can be enjoyed.

River birch prefers well-drained, slightly acidic soil and generally will not tolerate alkaline soil. It defoliates under dry, hot conditions unless supplemental irrigation is provided.

In the landscape, recommend river birch for its open character, which allows structures or other background material to show. It makes a nice plant where light shade is desirable, such as near a deck or patio. Pruning is not recommended. 

River Birch is a PlantWise alternative to Silktree and European Alder. 

 

Culture
Plant in Sun or part sun.

Soil & Growth Rate: Moist well drained acidic soils. Growth rate is fast.

Tolerates dry soils once established. 

Tolerates high temperatures. 

 

Use

Wildlife

Landscaping 

Wet Areas

Erosion Control

Riparian

Medicinal  (see Additional Note below)

 

 

Height
30 - 50 feet - sometimes to 90 Feet

 

 

Spread
40-60 Feet

Color
Early-spring foliage is bright green that becomes slightly darker with a sheen as the season progresses, then turns yellow in fall.

Flower: Monoecious; preformed, reddish green, male catkins near the end of the twig, 2 to 3 inches long; female catkins upright, 1/4 to 1/2 inch long, light green, appear or elongate (males) in mid-spring.


Fruit: Cone-like, aggregate, 1 to 1 1/2 inches long, with many hairy scales, reddish brown, containing many tiny, 3-winged seeds, ripen and break apart in the fall.

US Nativity
Native

 

More Info

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Characteristics & Attributes

Sun Light Requirement
    Full Sun
    Medium Sun / Average Shade
    Shade
Soil Moisture Requirements
    Dry - once established
 
   Moderate
 
  Moist
   Wet
Growth Rate
    Fast
  
  Moderate
  
  Slow
Tolerance
    Alkaline Soil
 
   Acid Soil
 
   Dry Sites - once established
 
  Wet Sites
 
  Wind
Uses
    Specimen / Ornamental
  
  Erosion Control
  
  Border
  
  Hedge
  
  Barrier / Screen
  
  Naturalized Areas
  
  Riparian 
Special Uses
    Wildlife
  
  Wetland
  
  Ground Cover
 
  Erosion Control / Stabilization
  
  Fragrant Flowers
  
  Cut Flowers
 
   Medicinal (see Note Below)
Nature Attracting
    Butterfly
   
Hummingbird
   
Songbirds
   
Game Birds
   
Beneficial Insects / Bees


Wildlife Benefit
   Cover
    Nesting
    Food/Birds (see Notes)
    Food/Small Animals
  
  Butterfly Host
  
  Butterfly Nectar

Additional Notes

Native Americans used the boiled sap as a sweetener similar to maple syrup and the inner bark as a survival food. 

White-tailed Deer: though considered a "secondary-choice food", it is an important dietary component, especially the birch leaves in the fall.

A favorite feeding tree of yellow-bellied sapsuckers, which peck holes in the bark to feed on the sap. Hummingbirds and red squirrels also feed at sap wells created by sapsuckers.

Ruffed grouse eat the catkins and buds.

Redpolls, siskins, and chickadees obtain a considerable portion of their annual diet from birch seeds

Plants serve as hosts for butterfly larvae. 

 


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