Water the mother plant the night before to hydrate all the stem ends. After adequate growth on the main plant, take a cutting, using sharp pruners to remove a tip measuring 3-5 inches. Moisten a half mixture of indoor potting mix and perlite. Dip the end of the stem in rooting hormone and poke a tiny hole in the planting mix and plant the stem, then tamp the soil down around it to secure it. Place a clear plastic bag loosely around it to help it root faster and maintain higher humidity levels. Water and mist the plant often to keep the soil consistently moist while it roots. Place the cutting in medium indirect sunlight. After 4-6 weeks, the roots should establish. Acclimate the heuchera to normal light conditions a few hours a day, starting in the morning light and progressing each day over a two to three-week period. Transplant your new plant baby into rich garden soil in the shade to a partially shady spot. Begin to fertilize at this point in the spring each year and watch it grow!