Ask Mr. Smarty Plants

Please accept my apologies!  You wrote GRAPELAND, but I obiously read GRAPEVINE as your address in your question.  Very sorry about that.  There are some plants that I recommended for "Grapevine" that will work for "Grapeland" but you are definitely in East Texas and we should be looking at the Texas-East Recommended list.  You do have a unique situation with your available sunlight.  We'll see what we can find that might work.   I can't guarantee anything, but I can make suggestions.   As well as Light Requirement, you should read the requirements of the other criteria under GROWING CONDITIONS to be sure that they match your site. 

On the Texas-East Recommended list I used the NARROW YOUR SEARCH option and chose both "Part Shade" and "Shade" under Light Requirement and "Herb" from General Appearance.  This gives you 30 choices.  I am going to recommend some that are pretty "reliable", but again they need to be compatible with the other growing conditions at your site.  All the herbs are shown on the USDA Plants Database as occurring in Houston County

 Asclepias tuberosa (Butterflyweed) is perennial.

Conoclinium coelestinum (Blue mistflower) is perennial.

Monarda fistulosa (Wild bergamot) is perennial.

Phlox pilosa (Downy phlox) is perennial.

Rudbeckia hirta (Black-eyed susan) is considered an annual or a short-lived perennial.

Salvia coccinea (Scarlet sage) can be either annual or perennial.

Next, I left "Partial Shade" and "Shade" chosen and selected "Shrub" under General Appearance.  This gives you 22 choices.  With the exception of two of these (Turk's cap and Coralberry) that occur in counties adjacent to Houston, all the shrubs have been reported to grow in Houston County.

Callicarpa americana (American beautyberry)

Ilex vomitoria (Yaupon) is evergreen.  It can be pruned to size and there are also dwarf varieties available.

Malvaviscus arboreus var. drummondii (Turk's cap or turkscap) is shown growing in adjacent Walker County and Angelina County but not shown in Houston County.

Morella cerifera (Wax myrtle) is evergreen and can be pruned.   There are also dwarf varieties available.

Symphoricarpos orbiculatus (Coralberry) is shown as occurring in adjacent Walker County, Madison County and Anderson County.

There are other choices on the list.  Not all of them occur in Houston County according to the USDA Plants Database.   That doesn't necessarily mean that they are absent from the county—they just haven't been officially reported.   I would think that any plant reported in a county adjacent to Houston County would stand a good chance of doing well there.   You can determine the county distribution of any of the plants on the list by clicking on the link for the plant on the list.  This will take you to the species page in our Native Plant Database. Scroll down the species page to the section near the bottom called Additional Resources.  Click on the USDA link there and then click on Texas on the distribution map on the USDA Plants Database page to see a county distribution map for Texas.   If you click on that map again, the names of the counties will be shown on the map.

You can find the names and contact information for nurseries and seed companies in your area that specialize in native plants in our National Suppliers Directory.  You can also find a list of sources for native plants from the Houston Chapter of the Native Plant Society of Texas.

I'm sure that you realize that in the heat of summer is not a good time sow seeds or to plant.  You can read our Gardening Timeline for advice on when to plant various seeds and do other gardening activities.  Shrubs should be planted in the fall after the temperature has gone down from the summer heat or in spring after threat of frost but before the summer heat.