These lists are of native plants of Philadelphia and the Delaware Valley. These plants have lived here for thousands if not millions of years. They are automatically suited to grow in this region. No worries about suitable zones, soil types or hardiness, their compatibility to the climate is built right in. Just match the moisture (moist or dry) and the light conditions (shade or sun) and you are good to go.
Spring
Spring Blooming Native Plants of Philadelphia
Spring Blooming Nectar Plants to Attract Hummingbirds
Early Spring Blooming Plants to Attract Bumblebees
Summer
Summer into Fall Blooming Native Plants of Philadelphia
Conditions
Plants for a Sunny and Dry Garden