Knowing Native Plants: Spring Wildflower Walk at Bowman's Hill Wildflower Preserve

On a cool March morning at Bowman's Hill Wildflower Preserve outside New Hope, Pennsylvania, a small group gathers to watch the first bulbs of spring push through last winter's duff. Knowing Native Plants: Signs of Spring is a three-hour field class led by naturalist Mary Anne Borge that turns close observation into a kind of seasonal initiation. The preserve sits on a wooded slope above the Delaware River, where oak-hickory stands give way to seepage swales and vernal pools that dictate the timing of blooms.

Walks center on early bloomers—snow trillium (Trillium nivale), skunk cabbage (Symplocarpus foetidus) and hepatica (Hepatica spp.)—species adapted to cold soils and brief sunlight before the canopy leafs out. Mary Anne points out identification cues you can feel as well as see: the triangular symmetry of a trillium, the cabbage’s signature odor, and hepatica’s rounded lobes and delicate petals. Participants learn phenology—the study of seasonal cycles—so they can predict what will flower next and understand how microhabitats like south-facing ledges or wetland margins shape plant communities.

This program is part of the Knowing Native Plants series, an annual run of 14 Saturday classes that function as on-the-ground coursework for anyone serious about regional botany or the Native Plant Advocate Program. The teaching style is field-first: expect close looks, hands-on demonstration, and photo-ready learning moments rather than classroom lectures. Mary Anne’s background as an author, photographer, and editor of Butterfly Gardener Magazine shows in her pace and the emphasis on photographic composition and plant-ethics you can apply while documenting finds.

Beyond identification, the walk explains ecological stories: how skunk cabbage generates its own warmth to melt surrounding snow, or how early spring bloomers exploit light before trees leaf out. The preserve’s mosaic of ridge, floodplain, and seep constitutes a living laboratory where visitors can read soil moisture and sun exposure in plant form. For gardeners and naturalists, the class doubles as a practical guide to planting native species and supporting pollinators.

Practical details are straightforward: meet at Bowman's Hill Wildflower Preserve for a roughly three-hour outing; wear mud-ready footwear and dress in layers. The experience is beginner-friendly but rich enough for experienced observers. If you love close-up natural history, early-season color, and learning from a practiced naturalist, this walk is an efficient, inspiring way to learn the region’s first flowers and the ecological logic behind their timing.

Classes typically start at the preserve’s main trailhead; bring a hand lens, a field guide, and waterproof notebook to record finds; consider trekking poles for slick slopes; cameras are welcome but practice ethical photography—avoid trampling plants for a close shot; dogs are not recommended during peak bloom surveys to protect fragile understory and nesting insects. Online reservations are strongly encouraged.