Mercer Botanic Gardens

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.

Acres: 180
Trail Length: 0.56 miles

Mercer Botanic Gardens

Park Details:

  • 8 a.m. - 7 p.m.

    Closed on Thanksgiving Day, Christmas Eve, Christmas Day, and New Years Day
  • 713-274-4160

Park Features:

Picnic Area
Trail Access
Shade Structures

Know Before You Go

  • Dogs are not allowed in the garden, except service dogs.
  • Bicycles, skates, skateboards, scooters, frisbees, team sports, jogging, and swimming are not permitted in the gardens. Bicycles are only allowed in the parking lot.
  • No food or beverages (other than water) are allowed in the gardens. No food services are available at Mercer. Picnicking is not allowed. Glass containers, balloons, confetti, and eggs are not allowed, as they can be harmful to garden patrons and wildlife.
  • Children under the age of 16 must be supervised by an adult at all times within the gardens.


Most garden areas are accessible to wheelchairs and strollers. Please call ahead to request special accommodations or to reserve a wheelchair.