BrendanCS said: ……… One question I forgot to ask, have you ever measured the soil temperature of your plants on a sunny day in Arizona? ………
No, I have not, Brendan. I used to worry about that - especially during the summer when temperatures often soar to as much as 105F+ under the relentless blazing sunshine here in southern Arizona, and the plastic pots (staged under 30% shade cloth) are often very hot to the touch - but my Brazilian cacti have always flourished, with robust growth, luxuriant spination and bountiful flowers & fruit, so I don't worry about that anymore. At one time I even staged my potted plants inside wooden boxes (as depicted in a photograph at
http://jp29.org/brcult.htm) in order to mitigate the effects of the blazing summer sun but I found that was not needed.
