I love your bonsai coleus. I have been training coleus as standards for three years, with good success. I overwinter them in the basement under a large gro-light. I'm unsure as to the best potting medium / mix to use. Do you have a do-it-yourself formula mix or do you use a commercial medium?
Thanks for your advice, DavidofDeLand. I'll have to wait a while to post pics of my standards. I just this last week took three flats of cuttings to root for summer bedding, so the standards look rather bare.