The Q&A Archives: Propagating Geraniums

Question: Hi! I searched your archives and didn't find anything on geraniums. Can you tell me how to start a new one from a 25-year old plant from my Great Aunt's property?

Answer: Most geraniums root easily from stem cuttings, and many cultivars must be vegetatively propagated to maintain desired flower and/or leaf color, shape and scent. Propagate in the fall, allowing for 3 to 4 weeks of frost-free weather for rooting to take place. Take cuttings from September to October from healthy mother plants which have been kept rather dry for several weeks. Take cuttings 3 to 4 inches in length from the growing tips of branches. Trim off the leaves from the base of the cutting, stick them into a coarse, sandy medium in small pots or flats, and water well. Provide indirect light and do not allow the cuttings to dry out. After roots are formed, place cuttings in full sun and water only enough to keep the cuttings from shriveling. Keep the surface soil dry to reduce diseases. Fertilize with a water-soluble fertilizer every two weeks.

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