Gahanna Woods encompasses a variety of wooded and successional habitats in an urban setting. This preserve protects perhaps the best remaining complex of buttonbush swamps and vernal pools in central Ohio. A pin oak-silver maple swamp forest surrounds these woodland pools. Mature oak-hickory and beech-maple communities occur on the higher and drier areas of the preserve.
Numerous spring wildflowers can be found within these woods. Of significance are the yellow water-crowfoot, swamp saxifrage, wild hyacinth, skunk cabbage and several species of trillium. The only known population of cypress-knee sedge in Ohio occurs in one of the buttonbush swamps within Gahanna Woods.
The preserve is leased to City of Gahanna Parks.
1 mile of hiking trails