Boo, my 'black' coleus are now sorta bronzy - and leggy. Somewhere I recall reading that to keep coleus 'bunchy', you should pinch out the tops. If I pinch off several inches will that work? And can I start new plants if I stick the pinched off parts in water? I suspect I should have done this some time ago, but I am one of those people who have a big problem pinching plants.