Flowering plants that overwinter and multiply by means on fleshy stems of leaves are called bulbs. The bulbs we grow in our gardens today are native to temperate zones all over the world, the woodlands, meadows and mountains of the Mediterranean, Middle East, and North America. The Dutch have been extremely successful over the centuries in collection and hybridizing new species of bulbs and improving them for reliable garden performance. Tulips in particular, once played an important role in the ...