Hi I just got a baby toe plant (fenestraria) and repotted it in a mineral mix and I was told to wait a week before watering it (its in a terracotta pot) but I live in North Carolina and we have been getting a severe heatwave this week and I read that fenestraria like to drink when the weather is cool and wont drink when the weather is hot and it could cause rot..but mine as new growth all over it ..is it safe to water?..or should I wait until the majority of the plant is wrinkly? Or wait until the weather cools down?..I had another one and I wasn't watering it hardly at all and the roots dried up and I had it in direct sun (like an idiot I thought its from Africa it can take the heat boy was I wrong) It wasn't wrinkly so I figured it didn't need water .. The plant in question sits in an eastern window and gets plenty of morning sun..
I had the same issue with my fenestraria. My friend told me they are basically allergic to water so I was barely watering it but I think it ended up dying from dehydration. I think one mistake I made was leaving it in the little 2" pot of peat moss it came in. A larger pot of sandy soil probably would've been better. If I did it again, I would try that and water every few weeks, allowing it to stay dry for a while in between. I would guess if they get wrinkly it's gone too long without water...but honestly I don't know. Let me know if you figure it out cause I'd like to grow one without killing it.