Mary, Mary, quite contrary, how fast does your garden grow? The 208 page Speedy Vegetable Garden by Mark Diacono and Lia Leendertz (Timber Press) will give you a whole new view of how fast you can grow something to eat. This means we can keep some food growing all year long, if only on our windowsill. Impatient children will find that they can harvest some greens in less than two weeks. I have grown sprouts in my kitchen…