Mercer Arboretum & Botanic Gardens

Founded by Thelma and Charles Mercer and preserved as a Harris County park in 1974, Mercer Arboretum & Botanic Gardens is a 393-acre oasis in Humble. The east side features 60 acres of themed gardens with vibrant plant collections, while the west side offers scenic trails, the Jake Roberts Maple Collection, and unique natural areas like the Bald Cypress Swamp.

Led by a passionate team of experts, Mercer is a botanical haven for visitors, the horticultural industry, and the scientific community.

Monthly Calendar
Monthly Calendar
Monthly Calendar

Check out all of the free outdoor and indoor activities among the botanic gardens each month.

EVENTS
Printable Park Map
Printable Park Map
Printable Park Map

Learn your way around our gardens like a pro. Download this printable map for your next trip.

VIEW MAP
Volunteers
Volunteers
Volunteers

Join us in a variety of volunteer opportunities, including in our gardens, greenhouses, visitor center, and with our educational programming.

VOLUNTEER SIGN UP
Visitor Info and Reservations
Visitor Info and Reservations
Visitor Info and Reservations

Before your visit to Mercer, prepare for your trip on how to help us keep our arboretum and gardens clean and safe.

LEARN MORE
Educational Resources
Educational Resources
Educational Resources

We value education. Learn of classes and workshops for adults and children, available all year-round.

SEE RESOURCES
Events & Registration
Events & Registration
Events & Registration

See an event you’d like to attend? Don’t forget to sign up and tell us you’ll be there.

Learn More

Explore Mercer

Interactive Map
22306 Aldine Westfield Road, Humble, TX 77338-1071
8 AM – 7 PM
(713) 274-4160
mercerbotanicgardens@pct3.hctx.net

Park Features:

Acres icon

393

Acres

Trail Miles icon

5.7

Total Trail Miles

Know Before You Go

  • Dogs or other pets are not allowed in the garden, except service dogs. Dogs on leashes are allowed in the ARBORETUM side of Mercer only.
  • Balloons, confetti, and similar, and glass containers are not allowed.
  • Alcoholic beverages, outside food and picnics are not allowed, except at designated picnic tables.
  • Bicycles, skates, skateboards, frisbees, sports equipment, jogging and swimming are not allowed in the gardens, including the parking lot.
  • Children under the age of 16 should be supervised while in the garden. No climbing on structures, water features and similar.
  • ACCESSIBILITY: Most garden areas are accessible to wheelchairs and strollers. Please call ahead to request special accommodations or to reserve a wheelchair.