Wow, am I glad this subject came up here because no way I could post this on that other list. I've only made one serious gardening mistake in my life. The reason is that I compulsively read and investigate everything before I do it, including everything about plants, soil, etc. I've made several minor mistakes but no biggies except this one. What was the one mistake -- I listened to that gardening guru Margaret Lauterbach. That's right, beware of Margaret for she can wreck a perfectly innocent garden and destroy the life of innocent gardeners. I will tell you how she does it. She recommends varieties of plants, veggies in particular, that taste good and grow well. So you learn to trust her. Then one day she talks about this variety of zucchini that you've never grown but have seen in a couple of catalogues -- zucchini costata romanesco. She tells you how wonderful the flavor is. She suggests you plant it because it is much better than other varieties of zucchinis. You plant it. By mid-summer your entire backyard is covered in green thighs and you find the bodies of your missing nephews who were stung to death by the writhing vines. You assume that you did something wrong like show the plants a bag of fertilizer or, heavens, actually tossed some in the general direction of the plants. Then you find out that Margaret didn't actually try this variety herself. But thanks for the information because now she knows better than to plant it in her garden. Beware! Liz :-p