I grow 5 or 6 varieties in my flower garden, depending on what re-seeds and what other types of seeds I can find. Buy them mostly from JL Husdon, Seedsman. My very favorite is a variety of D. Wrightii. It has a strong but graceful habit with huge, silvery-green leaves, and the flowers...hard to describe how awesome they are. Huge crystal white trumpets with subtle band of electric blue/violet at the very edges. The throat turns to a creamy butter color as it gets down to the anthers. They open at dusk and release an aroma that comes straight from Heaven. People on walks always stop at my house and marvel at them when they're heavily in bloom, usually in September. In the morning I find bees and other flyers down inside, rolling around totally intoxicated and coated in pollen.