Non-allergenic native and cultivated plants in Oklahoma: landscaping without hay fever

Many common landscaping plants produce allergenic pollen. Hay fever patients can reduce their exposure to aeroallergens by selecting non-allergenic species for yards, lawns and streets. The plants listed here are non-allergenic (hypo-allergenic) and possess characteristics desired for landscaping. Categories described include trees, shrubs, vines, perennial herbs and grasses.