Mr Don is very nice but... I dunno, he's more useful background plant than attractive specimen.
Lifelong sufferer from depression, apparently. As you imply, gardening proved therapeutic for him. As for his sex appeal, I've heard a number of ladies refer to him as enthusiastically as they do to Viggo Mortensen. Speaking as a hetero bloke, I've no opinion except that in his most famous role, old Viggo looked as though he needed to stand by a razor for a while... good actor though, and at least tri-lingual, it seems.