Holly fern has been named, by A&M Agrilife, as their 2022 "superstar" plant for Central Texas. I've grown it for many years, in pots and in the ground. Nice plant, in that it is moderately drought tolerant, shade tolerant, and pretty freeze tolerant, but it CAN'T TAKE THE HEAT. The tops in the ground die off every summer, and those in pots end up looking grim, even though I water them uber-abundantly. I'm confident that the roots are OK, though, and the plants will come back when it cools off. Of course, this has been a pretty bad summer. Anyone have any strategies for keeping these guys going in the heat?