Founded by Thelma and Charles Mercer and preserved as a Harris County Park in 1974, Mercer Botanic Gardens is an outdoor treasure located in the hustle and bustle of Humble. It spans 180 acres and is divided by Aldine Westfield Road – with Precinct 3 maintaining the east side that includes the Gardens. The Gardens is a 60-acre peaceful oasis where visitors can explore and admire gardens of bamboo, color displays, daylilies, endangered species, ferns, gingers, herbs, tropicals, and more.

Mercer employs a team of experienced botanists, horticulturalists, and gardeners who offer a wealth of knowledge and information, and who will gladly assist you during your visit. Its mission is to establish and maintain a versatile botanical facility for the greater Houston and Gulf Coast region that serves the public, horticultural industry, and scientific community.