Coleus are easy to propagate from cuttings, but I like the grab-bag surprise of planting from mixed seed and seeing what I get. Coleus seeds need light and warmth to germinate. Sow seeds on top of damp soil or seed starting mix, press them gently into the soil and do not cover.
Coleus seeds take 7 to 14 to germinate and grow slowly at first. Starting them indoors eight to 12 weeks before your last expected frost date gives them plenty of time to grow into sturdy seedlings before transplant time, advises Missouri Botanical Garden.
Some gardeners leave the small flowers, but it's best to pinch them off to direct more energy into stem and foliage growth. Coleus left to flower may lose vigor as the plant puts energy into seed production.. . . . .364011233710!]
