I've not grown malva, but have recently become aware of it. Definitely have it on my list for next year! Do you know if deer like to munch on it? Right now my gardens look emaciated from those critters...I've tried to plant things "deer tend to avoid" but over the last month they're eating them, too. We're out in the country so deer grazing is a fact of life we try to live with.
I had deer last winter, but no damage since then, so I have no idea. Deer population and availability of food determines how destructive they are. There are scents that deter them, but they are expensive. Hollyhocks are in the Malva family if that is any help.
OOOhhh are you saying that you have malva seeds available for sase? I had some started, went on vacation and my son didn't quite follow through on the watering job for me and they croaked. UGGGHHH! Don't you love cannas. They are tough as nails. I have had some setting in a bucket of water for almost two weeks and they are just as perky as when they were in the ground! I am in zone 8b and they keep coming back and multiplying.