Geranium Rooting – Winter Light
Q: I’ve overwintered a geranium for five years under lights. This year, it has started to blossom! If it is growing and blossoming under lights, will my cuttings root under the same lights?
A: Get a plant propagation heating mat and you’re off to the races! A combination of window light, artificial light, and bottom heat will yield a high success rate when rooting geraniums. I get good success with three-inch cuttings from which all but the top three leaves have been removed. Dip the ends in rooting hormone (Rootone, etc) and insert the stem halfway into a porous soil mix. Cover your cutting tray with clear plastic for three weeks.