Answer: Bermudagrass is not very shade tolerant. St. Augustine is more shade tolerant but will need supplemental watering in the summer. Zoysiagrass will also tolerate more shade than Bermudagrass. Perhaps your best bet is Bahiagrass. Although a wild species and a bit tough to mow, it is quite shade tolerant and can even be bush hogged without hurting it.
Hope this helps. I'll bet those pecans are some real beauties!
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