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Native Plant Society of Texas

Get on the Homegrown National Park Map

Show off your native plant garden by “getting on the map”! The Native Plant Society of Texas is partnering with Doug Tallamy’s Homegrown National Park® (HNP) to add Texas native plant gardens to their Biodiversity Map . Let’s demonstrate how NPSOT members are making a real impact with their gardens!

How to get on the map and join your user account to NPSOT: 

With just a short form and a single email confirmation, your garden will be counted toward our statewide effort to make Texas #1 on the map.

Step 1: Fill out this short form
https://form.jotform.com/253381924234154

Step 2: Accept your invitation
Check your inbox for the invitation email to activate your account. Check your spam folder if you do not see your invite. You will NOT receive an invitation if you already have a Map account associated with the email you used.

Your garden will automatically count towards NPSOT’s contribution to the biodiversity movement. 

Questions? Email MapSupport@homgrownnationalpark.org.

Frequently Asked Questions:

Q: I have been on the map since 2022.  Do I have to do something? 
A:  Yes, we would like you to associate your HNP Member Profile to the Native Plant Society of Texas Membership section of your profile.  See instructions for How to Join an Organization.
 
Q:  I have more than 1 planting areas on this site and can’t find a place to enter a 2nd, 3rd and 4th planting area.
A:  See these instructions to add additional Sites and Planting Areas.
 
Q:  I tried to find the link on my membership page, but could not.  Would it be possible for you to see if my native plant garden has already been registered? 
A:  Use the SEARCH feature.  Enter the address for your profile and search on the desired address.
 
Q: Is my entry just another certification like NWF, Monarch Watch, Audubon, etc.?
A: Getting on the Biodiversity Map is not a certification.  It is a visual listing, acknowledgement and confirmation that a single individual can take independent action and make a difference in restoring the foundation of biodiversity by planting native plants.  It is free. Homegrown National Park is Doug Tallamy’s non-profit organization . It provides education about growing native plants, reducing non-productive turf lawns, removing invasive plants, and specific keystone native plants which are critical to building a foundation for habitats. This tool maps where folks are installing native plant sites and planting areas, as part of a native plant focused movement.

About the Region

2026 Fall Symposium Logo

This low-elevations region of Texas extends inland from the barrier islands, about 60 or so miles, and stretches from Brownsville to Louisiana. In total, it covers about 9.5 million acres, with a high point of 150 feet in elevation. More than 1000 species of plants can be found in this region. On the southern end, species more common in Mexico (such as Sabal mexicana) and Central America occur.

The barrier islands provide us with dune systems, and clay flats to the inland side, which have species found in these areas alone. Many plants here, such as Ipomoea pes-caprae (beach morning glory), can be found throughout tropical regions of the globe. I’ve encountered the same species on the beaches of Guam.

Once inland, vast marshes and wet prairies occur. Occasionally, oak (Quercus fusiformis) groves can be found. Common grasses include species of Bothriochloa, Paspalum, and Sporobolus; eastern gamagrass (Tripsacum dactyloides); and switchgrass (Panicum species). Many rivers and creeks cut through the Gulf Prairies, and along these riparian areas various species of trees, Sabal minor, and other plants adapted to clay soils can be found. Due to overgrazing, farming, and fire suppression, woody species such as mesquite (Prosopis glandulosa) and huisache (Acacia farnesiana), and invasive species such as chinaberry (Melia azedarach), Brazilian pepper (Schinus terebinthifolius), and Chinese tallow (Sapium sebiferum) have increased and displaced our native flora.

Source: Wildflowers of Texas by Michael Eason