Native Plants for Pennsylvania Gardens
Pennsylvania spans USDA zones 5b, 6a within the Mixed Forest, Piedmont, Mid-Atlantic, Midwest ecoregion. Native plant gardening in Pennsylvania means choosing from species that evolved in Pennsylvania's specific conditions of soil, rainfall, and seasonal temperature patterns. The moderate climate supports extraordinary native plant diversity — cold-hardy perennials that also handle summer heat, with bloom potential from February through November. Find your city below for the specific plants best suited to your local USDA zone.
Top Native Perennials for Pennsylvania
June–August · 1–2 feet · Full sun
- CRITICAL monarch butterfly host plant — larvae eat milkweed only
- Brilliant orange flowers
June–September · 2–4 feet · Full sun
- Native bee specialist
- Goldfinch seed source
April–June · 1–3 feet · Part shade to full sun
- First hummingbird flower of spring
- Self-seeds freely
Top Native Shrubs for Pennsylvania
4–8 feet · Spring spectacle
3–8 feet · Fall berries
3–5 feet · Fragrant + fall colour
Top Native Trees for Pennsylvania
Height: 50–100 feet
- 500+ caterpillar species
- Acorns for wildlife
Height: 15–30 feet
- Spring flower spectacle
- Red berries for birds
Height: 70–100 feet
- Fastest-growing eastern native tree
- Tulip-shaped spring flowers
Native Ornamental Grasses for Pennsylvania
Height: 2–4 feet
- Rust-red fall colour
- Sparrow nesting
Height: 2–4 feet
- Shade-tolerant — rare for ornamental grass
- Unique dangling seed heads
Native Groundcovers for Pennsylvania
- Long bloom season (spring through fall)
- Tolerates shade and sun
- Dense shade groundcover
- Elegant heart-shaped leaves
- Spring colour carpet
- Native bee nectar
Best Planting Time in Pennsylvania
Spring or fall planting. Water weekly in year one during dry spells. Year two — water in drought only. Year three — established. Native plants are slow to establish above ground while building root systems — patience in years 1–2 rewards with decades of low-maintenance performance.
The Pennsylvania Native Plant Society holds annual plant sales — often the best source for locally-sourced native plants adapted to Pennsylvania's specific conditions. Search "Pennsylvania native plant society" for your local chapter.
Native Plants by City in Pennsylvania
Frequently Asked Questions
What are the best native plants for Pennsylvania?
Top native perennials for Pennsylvania's Moderate Climate (Zones 6–7) include Butterfly Weed, Purple Coneflower, Wild Columbine. These plants are adapted to Pennsylvania's soil and climate conditions and provide critical pollinator habitat while requiring minimal maintenance once established.
What native shrubs grow well in Pennsylvania?
The best native shrubs for Pennsylvania gardens include Native Azalea (Flame Azalea), American Beautyberry, Virginia Sweetspire. Native Azalea (Flame Azalea) is especially valuable: Spectacular spring bloom.
When should I plant native plants in Pennsylvania?
Spring or fall planting. Water weekly in year one during dry spells. Year two — water in drought only. Year three — established. Native plants are slow to establish above ground while building root systems — patience in years 1–2 rewards with decades of low-maintenance performance.
Do native plants need fertiliser in Pennsylvania?
Most zone 6–7 natives prefer average well-drained soil. Native plants evolved in nutrient-poor conditions — rich amended soil causes floppy growth. Skip fertiliser entirely for established native plants.
What native trees should I plant in Pennsylvania?
Top native trees for Pennsylvania include White Oak, Flowering Dogwood, Tulip Poplar. White Oak supports 500+ caterpillar species.