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European white birch and Quaking aspen: growing conditions and wildlife benefits.

COMMON CHOICE European white birch Betula pendula	NATIVE ALTERNATIVE Quaking aspen Populus tremuloides
	GO NATIVE
Native range
Europe and Asia	Subarctic America to Mexico.See state guides
Sunlight
Full sun to part shade	Full sun
Soil moisture
Moist, well-drained soil; tolerates occasional dryness	Average moisture
Mature height
30–50 ft	40–50 ft
Mature spread
10–30 ft	20–30 ft
USDA hardiness zones
2–7	1–6
Season of interest
Spring catkins & ornamental bark	Spring
Garden & wildlife value
Foliage can support eastern tiger swallowtail caterpillars.	This native tree adds wildlife cover and leaves that shimmer in the breeze.
Growing notes
A deciduous tree; heat and drought stress can increase pest problems.	A large tree for cool climates; heat and humidity are poor fits, and roots can form a spreading colony.
Growing information	Growing information Native range: Kew Growing guidance: Oregon State

Sizes describe the species; individual cultivars can differ.