Betula nigra
River Birch
NJ Ecotype (grown from seed)
*Seedling stock expected by 2026, some may be available in 2025
Deciduous, often multi-trunked, hardwood tree; fast growing; 30-50ft tall on average, but can occasionally reach up to 90ft
Monoecious—both male and female catkins form on the same tree; male catkins form in fall, last through winter, and release pollen in spring; female flowers open in spring and produce seeds by early summer; leaves becomes golden brown in fall
Silver, papery exfoliating bark reveals brown bark underneath; deer, rabbits, and beaver eat the bark, especially in winter
Seeds are sought after by birds including Pine Siskin, chickadees, Purple Finches, etc.
Host plant to moths and butterflies including the Mourning Cloak, Dreamy Duskywing, Distinct Quaker, Birch Dagger Moth, Io Moth, Alien Probole, and many more; other insects that feed on various parts of Birch include wood-boring beetles, long-horned beetles, leaf beetles, shield bugs and more
A pioneer species for forests on stream banks
River Birch
NJ Ecotype (grown from seed)
*Seedling stock expected by 2026, some may be available in 2025
Deciduous, often multi-trunked, hardwood tree; fast growing; 30-50ft tall on average, but can occasionally reach up to 90ft
Monoecious—both male and female catkins form on the same tree; male catkins form in fall, last through winter, and release pollen in spring; female flowers open in spring and produce seeds by early summer; leaves becomes golden brown in fall
Silver, papery exfoliating bark reveals brown bark underneath; deer, rabbits, and beaver eat the bark, especially in winter
Seeds are sought after by birds including Pine Siskin, chickadees, Purple Finches, etc.
Host plant to moths and butterflies including the Mourning Cloak, Dreamy Duskywing, Distinct Quaker, Birch Dagger Moth, Io Moth, Alien Probole, and many more; other insects that feed on various parts of Birch include wood-boring beetles, long-horned beetles, leaf beetles, shield bugs and more
A pioneer species for forests on stream banks
River Birch
NJ Ecotype (grown from seed)
*Seedling stock expected by 2026, some may be available in 2025
Deciduous, often multi-trunked, hardwood tree; fast growing; 30-50ft tall on average, but can occasionally reach up to 90ft
Monoecious—both male and female catkins form on the same tree; male catkins form in fall, last through winter, and release pollen in spring; female flowers open in spring and produce seeds by early summer; leaves becomes golden brown in fall
Silver, papery exfoliating bark reveals brown bark underneath; deer, rabbits, and beaver eat the bark, especially in winter
Seeds are sought after by birds including Pine Siskin, chickadees, Purple Finches, etc.
Host plant to moths and butterflies including the Mourning Cloak, Dreamy Duskywing, Distinct Quaker, Birch Dagger Moth, Io Moth, Alien Probole, and many more; other insects that feed on various parts of Birch include wood-boring beetles, long-horned beetles, leaf beetles, shield bugs and more
A pioneer species for forests on stream banks
Details
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Yellow, Green, Brown
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Early Spring
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30-50ft on average, but if conditions are ideal, can reach up to 90ft
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On average live about 50-75 years
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Medium
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Partial
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Mourning Cloak
Dreamy Duskywing
Distinct Quaker
Birch Dagger Moth
IO Moth
Alien Probole -
FACW - usually occurs in wetlands, but can occur in non-wetlands
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30-60 days of cold stratification; germination rates improves when seeds are exposed to light