Who we are

We are a collaboration of individuals dedicated to engaging our visitors in learning about plants, preserving Thelma and Charles Mercer’s legacy by providing financial support to Mercer Botanic Gardens, inspiring future generations and continuing the rebuilding of Mercer Botanic Gardens following the devastating April 2016 tax-day floods. We are a non-profit 501(c)(3) organization partnering with Mercer Botanic Gardens.


Mercer Botanic Garden is open daily at 8 am. Closing hours change seasonally so please check Harris County Precinct 4 website for details. The Mercer Society offices are open Monday–Friday from 9 am to 5 pm.
The Mercer Gift and Plant Shoppe is open Monday - Saturday from 10:00 am to 4:00 pm and Sunday from 11:00 am to 4:00 pm.

Gardens are Closed On: Thanksgiving Day, Christmas Eve & Day, and New Year's Day. Admission to the gardens is always free.

Getting Here

22306 Aldine Westfield Road
Humble, Texas 77338


Raise the Roof Campaign

One key structural result of the historic April 18, 2016 Tax-Day floods, was the loss of a wooden footbridge connecting Story Lake Garden to the rest of Mercer. Harris County Precinct 4 will replace the old bridge this summer, and we are raising money to build a roof over it to make it a true gateway to Storey Lake.

Donate Now to Raise the Roof


Ever-changing botanical beauty, horticultural displays and programs will inspire you to visit Mercer Botanic Gardens often. Becoming a member not only gives you many valuable benefits, but also gives you a sense of being a part of this botanical treasure. Our members are essential to the Garden's sustainable growth and continuing success.

Join Today

Get in Touch



August 26

Summer Garden Club - Garden to Vase

The third in our Summer Garden Club Series is “Garden to Vase.”  Pat Hermes, Houston School of Flowers, will guide you […]

September 16

Summer Garden Club - Basket Weaving

The fourth and final entry in our 2017 Summer Garden Club Series is led by skilled artisan Pat Hoge in […]

October 14

10th Annual Garden Party Gala

Save The Date—Saturday, October 14, 2017—The Mercer Society’s 10th Annual Garden Party Gala Enjoy an evening filled with live entertainment, […]

October 28

Wine and Roses at Mercer Botanic Garden

Taste wines, both international and domestic, along with complimenting culinary samples while enjoying live music and a beautiful fall evening […]

Recent News

  • What’s new in the Gift and Plant Shoppe?

    Smudges no more! Carry this stylish little “Smart Cloth” wherever you go with its very own easy to attach pouch.  The […]

  • “Gingers in the Garden Gigantic Success!

    ‘Gingers in the Garden” was a gigantic success!  Ceil Dow explored the fascinating world of gingers on July 22 to […]

  • Fern’s Favorites!

    Mercer’s resident authority on all that is unique and special about our Gardens, Fern is Mercer’s beloved canine mascot who […]

  • Hello world!

    At long last, The Mercer Society is delighted to launch our new website.  We hope you are going to enjoy […]