James Waddick wrote: Only after I got rid of them did they start to appear all over the greenhouse. Revenge of the Oxalis? __________ I have one pot of oxalis, it is the purple-leaf one that is so readily available alongside its green counterpart during St. Patrick's Day season. I love it. It's vigorous all during the growing season, then I just store it dry over the winter in my garage. --Jerry Lehmann, Olathe, KS