In Kirra wrote:
Could you put up a shade sail over them so they miss the midday sun?
Hopefully your temps have cooled down like ours have. Nice balmy mid
20s yesterday and today.

Low 20s here, with 11 degree C nights... totally confused the roses,
which probably thought last week that summer had come early. I'm now
staving off a mildew attack... that makes it an early autumn, right? :-)