Hi
@tarev! I missed seeing your posts, glad you are back.
Something is eating mine again, just like last year. The leaves do have a scent but I guess not strong enough. I took these photos a few minutes ago:
It would look like the work of at least two different kinds of insect, wouldn't you say? I know that a type of bee cuts round holes in the leaves of some plants but I don't know if that's what's happening here. The last photo shows something else. Do you recognize the damage?
Yes, you are right, they seem to do great in that temperature range. Last summer, they looked terrible during the heatwaves, poor things. I planted them in the shadiest and breeziest part of my yard. We'll see what happens this year that the plants are twice as large and have an established root system. Hopefully, they'll cope better.
But I need to find out what is eating their leaves so I can treat the problem as soon as the plants stop blooming.