Hi, Rodger, now you've added to the puzzle. >As far as I'm concerned, this species is as tough as old boots and >reports of difficulty with it puzzle me. I thought Diane's suggestion of keeping it dry in summer must be the answer, because I hadn't done that. Jane's growing it with extreme drainage doesn't appear to be what you do in your garden. I've tried it in various spots, all with good if not extreme drainage, for instance in a pot above of a lily, edging the sidewalk by/under rhododendrons, and so on, and they last for a while if not flower heavily, then no more. Your climate should be similiar to mine, and the oxalis here were never put in full sun. So, do yours get dry in summer? Ken, western Oregon