Save Your Geraniums: Root Cuttings Before Frost
Every fall, gardeners face the same dilemma. The geraniums on the porch looked amazing all summer, but colder nights are coming. The good news? You do not have to say goodbye. A few healthy cuttings taken before frost can help carry your favorite colors through winter and into next spring.
Why fall cuttings make sense
Garden geraniums, botanically known as Pelargonium, are tender perennials. Unlike hardy perennial geraniums, they need protection from freezing weather. Cuttings take much less indoor space than a large porch planter and give you young plants to grow on for another season.
Start while the parent plant is healthy and actively growing, preferably in late summer or early fall. Do not wait for frost damage. Check stems and leaves for pests or disease before bringing them indoors.
How to root geranium cuttings
- Prepare a small pot with drainage holes. Fill it with fresh, free-draining propagation mix, such as a peat-free seed-starting mix with perlite. Moisten the mix and let excess water drain.
- Using clean, sharp shears, take a healthy, nonflowering stem tip about 3 to 4 inches long. Cut just below a node, where a leaf joins the stem.
- Remove the lower leaves and any flowers or buds, leaving a few healthy leaves at the top. Let the fleshy cut surface air-dry briefly before planting, without allowing the whole cutting to wilt.
- Use a separate dipping container, not the bottle. Pour a small portion of Hormex Rooting Powder #1 into a separate, clean container. Lightly moisten the stem base with clean water, shake off excess moisture, dip it into that portion of powder (never directly into the bottle), and tap off the extra. Discard the leftover used powder. Do not return it to the bottle.
- Make a planting hole first so the powder stays on the stem. Insert the cutting about an inch deep, with the lowest node below the surface and all remaining leaves above it. Gently firm the mix so the cutting stands securely.
- Place the pot in bright, indirect light, away from cold drafts and hot direct sun. Keep the mix lightly moist, never waterlogged, and empty any standing water from the saucer.
Give roots time to develop
Avoid keeping geranium cuttings constantly wet. If you use a clear cover to prevent wilting, keep it off the leaves and ventilate it regularly. Remove any decaying material promptly.
Rooting takes several weeks and can take 6 to 8 weeks, depending on the variety and conditions. Look for developing roots rather than relying on a fixed date. Avoid repeatedly pulling on stems to check them.
Keep them growing until spring
Once a good root system develops, grow each plant in its own pot in a sunny window or under a grow light. Water when the surface dries, and pinch growing tips as needed to encourage branching. In spring, gradually introduce plants to outdoor conditions before planting out after frost risk has passed.
Coleus and fuchsia can also be saved from cuttings, but their moisture needs differ. Check the Hormex plant list for your next project, and visit our How to Use guide for powder application steps.
Happy rooting from the Hormex family.
Further reading
University of Illinois Extension: cuttings · Iowa State University Extension: overwintering geraniums · RHS: growing pelargoniums
