Soon 2 out of 3 were dead- I think from getting their crowns wet. The third plant is so far doing well on the edge of my shady east facing front porch. It only gets a little morning sun and is protected from overhead water by the overhanging roof. I water it once a week from the bottom by setting its pot in about 2" of water for 10-15 minutes. It is still in the original pot with what looks like a peat mixture.

I plan on repotting it soon into a gritty mixture of decomposed granite, halite pebbles and about 20%-30% rich compost with its crown high and dry with a mulch of halite or some other rocks.

I hope that it can survive and reflower. This summer the temperature here has been over 100 almost every day and I fear that Lewisias would just melt in our full sun. I would welcome any thoughts and suggestions on cultivating Lewisias in the south.

Here is my town in California
Santa Maria 15 day forcast

Becasue I am in a coastal zone the weather here is actually cooler than where species of Lewisia may occur during the summer.

The main consideration is again the nighttime temps which may exhaust plants that use nighttime lows for an R & R cycle. My feelings is that it may be difficult for the Lewisias to flower in your area but until it is attempted one does not really know!

It is a little hotter in Austin than in Dallas. In early August we were over 100 every day with about 74 as the low.An official 102 temperature might mean 130 in the direct sunlight.
I returned to find my Lewisia doing fine on the porch. I watered it again from below and set it back out there.

This fall I plan to purchase several Lewisias and do some experiments to see how they can survive here.

While at Muir Woods I purchased a little Giant Sequoia seedling to see if it can survive here. The display claimed that it could survive -30 to 108 degrees and would grow anyywhere. We shall see...