Discover O.S. Gray Natural Area

This post oak is estimated to be more than 250 years old. Measuring 42 inches across at chest height and standing about 55 feet tall, it is a living remnant of the Eastern Cross Timbers.

Throughout the park you’ll find imprints in the concrete walking path with the outlines of the leaf shapes of all six varieties of pecans developed by O.S. Gray - GraTex, GraKing, GraZona, GraBohls, GraPark Giant, and GraCross.

Invasive species are plants or animals that don’t belong here. They spread quickly, take over the land, and push out native plants and animals. Volunteers continually work to remove invasive plants, such as privet, from our park.

Nestled in Rosser’s Woodland is a patch of little bluestem, unique in its location in the middle of the city. Typically, little bluestem is found along roadsides or in rural areas. The Friends of O.S. Gray are dedicated to preserving this distinctive and special feature of the park.

Have you ever wondered what plants and animals you’re seeing while out in nature? iNaturalist is an app that can help!

You can explore what’s been observed at O.S. Gray Natural Area via our iNaturalist project.

In the Rosser Meadow you will find a bug hotel mounted on a pole. Bug hotels offer safe nesting sites for both native and migratory solitary insects, helping support biodiversity and a healthy ecosystem.