Dear Jim: >Perhaps I am needlessly paranoid about the 'Invasive Plant Police '< You are not "needlessly paranoid". Work is progressing on the government's proposal of a White List of approved plants. If a plant is not on the list, it is automatically banned. I was casually asked by my agricultural agent last year if banning Oxalis would hurt my business. I don't think that question came out of the blue. The White List proposal has been extensively discussed on this list, and I remember well a couple of years ago a representative of the USDAA saying emphatically that if a plant was weedy or invasive in one situation they would ban it for the entire country. I think Lantana and the problems it has caused in Hawaii was cited. When the USDAA gathers information, you may be certain that it will refer to this list for bulb information, so coupling the name of a bulb with the epithet weedy or invasive could be used as justification for banning it. In this climate all kinds of things self sow with great vigor, including Verbascum, Verbena bonariense, feverfew, borage and virtually anything that produces copious seed. Not Oxalis, though. I used to throw my surplus Oxalis bulbs on the ground outside the greenhouses, where they would form lovely little mats throughout their first winter, never to appear again. I live surrounded by pasture. Not one garden plant has ever appeared in the adjacent pastures whereas they sow themselves vigorously in my garden. We should be very, very careful in how we describe plants that make themselves at home in our gardens and neighborhoods. I don't even cosider O. pes-caprae invasive. I have never seen it invade pastures or natural areas, it is mostly present in gardens and disturbed areas in California. Most people don't like it because it competes visually with plants they want to grow. It does not out-compete them and drive them over the brink, in fact it only thrives where there is little to compete with, and I speak from first hand experience. A tip for dealing with aerial bulbils produced by O. convexula and others. Vacuum them up before they have a chance to blow around. A small hand held vacuum works great. I do this so that they don't get in the adjacent pots. Diana