Regional

Pennsylvania Native Plants for the Home Garden

Pennsylvania spans zones 5a (Potter County highlands) through 7a (Philadelphia region and southeastern counties). The state includes Appalachian mountain forests, piedmont plateaus, Ridge and Valley terrain, and the Atlantic coastal plain in the southeast corner. Each landscape has a distinctive.

Pennsylvania native plant border with wild columbine, Virginia bluebells, and ferns
Photo: Unsplash on Unsplash

Pennsylvania spans zones 5a (Potter County highlands) through 7a (Philadelphia region and southeastern counties). The state includes Appalachian mountain forests, piedmont plateaus, Ridge and Valley terrain, and the Atlantic coastal plain in the southeast corner. Each landscape has a distinctive native flora.

Per Penn State Extension, Pennsylvania contains approximately 3,000 native vascular plant species. The ones most useful for residential gardens combine adaptability to human-modified landscapes with the ecological functions — insect support, bird habitat, pollinators — that make native plants worth choosing over ornamentals.

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Native Trees

Quercus alba (White Oak)

Zones 3–9 | Full sun | Mature: 50–80 feet

Per Penn State Extension, white oak is one of the most ecologically valuable trees in Pennsylvania, supporting 534 caterpillar species per research cited by Penn State. Acorns are consumed by deer, turkey, and dozens of bird species. Grows slowly to a majestic size; plant for generational permanence. Requires deep, well-drained, moderately acidic soil (pH 5.5–7.0).

Keep deer and rabbits out

Liquid Fence uses egg-and-garlic scent. One application lasts 30 days and works on both deer and rabbits. Read our full pick.

See our repellent pick

Acer saccharum (Sugar Maple)

Zones 3–8 | Full sun | Mature: 60–75 feet

Per Penn State Extension, sugar maple is native to Pennsylvania's hardwood forests and is the dominant canopy tree of many Appalachian forest communities. Outstanding fall color. Needs moist, well-drained soil; does not tolerate compaction or road salt. Named cultivars ('Green Mountain', 'Legacy') are more disease-resistant than the straight species.

Carpinus caroliniana (American Hornbeam / Musclewood)

Zones 3–9 | Part shade to full shade | Mature: 15–30 feet

Per Penn State Extension, American hornbeam is a native understory tree that tolerates deep shade, wet soil, and deer browsing better than most small trees. The muscled, sinewy gray bark is distinctive year-round. A good choice for shaded spots where flowering trees fail.

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