Ask Mr. Smarty Plants

Since St. Augustine is not native to North America, it is out of the area of expertise of the Lady Bird Johnson Wildflower Center. Both because of economic reasons and watering restrictions last summer, a lot of people are probably facing the same problem. If you live in a Homeowner's Association requiring a closely mowed lawn and/or have a lot of shade on your lawn, you may be stuck with the St. Augustine. Now that we have had some rain, and assuming you will water when there is no rain, the grass should come back. It will, however, be heavily invaded by a number of weeds. The weeds probably ARE native to the Central Texas area, and will be more likely to survive than the grass, which needs quite a lot of water.

We understand your not wishing to re-sod all at once, but we would like to make some alternative suggestions. If you have some sunny areas in your lawn, there are native grasses that can actually be mowed and are acceptable to most Homeowner's Associations. See our How-To Articles on Native Lawns and Buffalograss. You could begin gradually replacing the St. Augustine with a more appropriate native plant, as time and resources allowed. You will still have to be vigilant about weeds, but you won't need to do all the fertilizing and watering that St. Augustine requires. Over time, you could completely replace the non-native plants with natives more appropriate for your environment. If you have areas of heavy shade because of trees, we would even suggest removing the lawn material there and putting down a good quality shredded bark mulch. This is attractive, requires no watering and helps to keep weeds down. As it decomposes it will add nourishment to the tree roots beneath it. Of course, it will need to be replenished from time to time, but likely only once or twice a year.

From our Native Plant Image Gallery:

Bouteloua dactyloides

Hilaria belangeri var. belangeri

Bouteloua gracilis