I have two small jade plants (see pictures). The leaves of the larger one are turning brown, and now the leaves of the smaller one are too. I don't know if they're burning from too much sun (I've had them in full sun, but we're consistently in the 90's - although we had a week over 100 - yuk!) so I moved them to a shady location. Or maybe I'm overwatering or underwatering them (~1-2 times a week when it's this hot). Or perhaps it's a pest or disease? All ideas are welcome.
