We want to leave them in the sun long enough that they are not damp when we store them, so they don’t grow mold. On your cutting, make another cut (on the same end you previously cut) below a node, so your new plant is 4 to 6 inches long. Store your geraniums over winter Storing geraniums for winter is super easy — you just put them in a cardboard box or a paper bag and close the top. If you harvest too late, the plant might have already entered its die-off phase. Dig up and pot the healthy plants. Instead of moving the whole geranium plant indoors, you can propagate new little plants for next spring by taking cuttings. For this method, hanging the plants or covering them loosely with a paper bag works well and eliminates the need for pots. There are several ways to overwinter your geraniums, but we find the best way is to plant … Remove the bottom leaves (say, halfway up the stem). Cuttings will take up less space than a potted plant indoors. Dip the stem in the powder or use a gel rooting hormone. I recently read where a gardener said she put the plants in the bag with the roots sticking up. Remember to label your geraniums if you have more than one variety. If your garden is full of this flower, it's probably worth it to overwinter some plants. Don’t leave the plants in the sun so long that they shrivel up. Cut a 3- to 4-inch section of stem. It's easy to take cuttings from pelargoniums in summer and then overwinter them in a light, frost-free place. Take cuttings about 6 inches long and remove all but the top leaves. This allows you to have a head start on growth and blooms for next year's garden. We had an almost 100% success rate and the plants put on an impressive growth spurt when potted on in spring and planted outside once the danger of frost has passed in May or June. University of Minnesota Extension, Marie Iannotti is an author, photographer, and speaker with 27 years of experience as a Cornell Cooperative Extension Horticulture Educator and Master Gardener. This only affects the zonal pelargoniums but it is getting everywhere nowadays. 1  Full plants and cuttings should be harvested in the fallf while the plant is still blooming and the temperature is mild. Sometimes a home cannot accommodate overwintering large plants due to lack of space or light. I’m thinking perhaps I will try both ways this year and see which way works best. You can over-winter them easily so that they are available for the next year. Grow cuttings. Ideally the temperature should be between 45-50 F. Another approach to overwintering geraniums involves storing them with bare roots. Besides overwintering the original plants, I like to start some fresh geranium cuttings each fall from the tips of plants I cut back. Overwintering full-size, dormant geranium plants involves tucking them away and then pulling them out again in the spring. Geraniums (Pelargoniums) can be dug up be dug up after they have finished flowering in the autumn. Left outside over winter, pelargoniums (often called geraniums) will turn black and die. Then, store them in a cool, dark room. I typically will use a, Water your plants well (slow and until you see water draining into the saucer). You can pot your overwintered geraniums up indoors to give them a jumpstart, or if you live in warmer zones, you can pot them up outside. You must avoid frost on your geraniums for successful overwintering. Full plants and cuttings should be harvested in the fallf while the plant is still blooming and the temperature is mild. Then, prune them to a third of their size. This gives the geraniums time to adjust to the drop in humidity that occurs indoors during winter. Don't use woody or old stems. Start by cutting a four- to six-inch piece just above the node or joint on the plant’s stem. If the humidity is less than 50 percent, consider adding a bag over the cutting and pot to retain moisture. Plant the cutting in damp soil, making sure not to remove the rooting hormone when planting. Rooting Cuttings from Geranium … Geranium Cuttings Over Winter Clippings can be harvested in the fall while the plant is at the tail end of blooming and the temperatures are mild. On your new cutting, make another cut just below a node, so that the length from the leafy tip to the node at the base is between 4 and 6 inches (10-15 cm.). If you have particular geraniums you wish to preserve I recommend taking cuttings.This method takes up less space but you need to start well before the first frosts. I don’t check on them during the winter and I don’t spray the roots with water, as I’ve read in other tutorials. Cut a 4- to 6-inch portion of a green stem just above a node, which is the part of a stem from which leaves emerge, during a lull in the plant's blooming cycle. Bring your plants indoors before it's time to close the windows and turn on the heat for winter. Is able to tolerate very dry seasons. Firm the soil around the cutting, and place it near a bright window. Rooted geranium cuttings. Honestly, it will look like you’re trying to grow something from a dead stick, but just be patient. There are three ways to make geraniums last through the winter: Overwinter inside as potted plants. First, simply cut a section of stem about 3 or 4 inches long at about a 45 degree angle just below a leaf node. If you harvest too late, the plant might have already entered its die-off phase. Place the plants inside open paper bags or hang them upside-down from the rafters in a cool, dark location for the winter. Store your geraniums through winter in a paper bag or cardboard box in a cool, dry location, at about 50 to 60 degrees F. 2. I go through the plants and toss out the ones that are totally brown and brittle. Doing this periodically throughout the winter (and spring) will result in a sturdier, bushier plant. Choose a healthy plant. Therefore, come fall, gardeners in zones colder than 10 have four options for their plants: Let them die off as annuals; bring them indoors as houseplants; propagate new plants from cuttings; or store them dormant until spring. In fact, by propagating cuttings you can create many new geranium plants from just one big plant. Another option is to take cuttings from garden geraniums instead of over-wintering whole plants. You can learn how to propagate geraniums via stem cuttings in our guide. (It is possible to use … You’ll want to look for some with a bit of green in the stem. I use water with just a little. When the weather cooperates, I like to do this step outside, because it makes quite a mess with all the dried up leaves and such. If you opt to use bags, make sure not to seal them tightly to allow airflow. Somewhere around the middle of March, I pull my bags out of the basement. And it’s really fun to have a plant nursery indoors while the ground outside is frozen solid. Move them back outside once the danger of the season's final frost is past. Within a few weeks you’ll start to see little bits of green popping out, and, then it will be time to get excited. Dig up your geraniums before the first frost. Introducing "One Thing": A New Video Series, Growing Geraniums and Annual Flowers in Minnesota. So, if you want a profusion of blooms, you’re better off purchasing new plants as annuals each year. Plants that are just a few years old can produce flower heads the size of softballs. Secondly, prune the plants back to remove all the soft growth, the material removed can be used as softwood stem cuttings. Geranium over-wintering tips Before bringing your geranium plants inside for the winter make sure you examine them well first. Allow the soil in the pot to dry out. The Spruce uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Geraniums (Pelargonium hybrids) are usually only grown as annuals, except in USDA zones 10 and 11, where the mild climate allows them to flourish outdoors all year long. Use your finger to make a 2-inch deep hole in the soil. Wintering geraniums causes plants to produce larger flowers as plants mature in years. There are different ways to keep geraniums from year to year. Select shoots that look healthy and are not flowering. When growing geraniums indoors, keep an eye out for typical indoor garden pests, such as aphids, spider mites, and fungus gnats. Geraniums root easily from simple stems you cut from a healthy geranium plant. If they show signs of drying, spray them with water or slightly water the roots. This is especially true for zonal geraniums. Yes, there are several options for keeping geraniums over the winter: Keep them as houseplants. A Rewarding Option. This is what you’ll be planting. Living in the Northeast where winters mean freezing conditions, I’m always elated when I can grow a tropical perennial as an annual. Pure white flowers. Be sure to remove all foliage from the cuttings that might fall below the water level; leaves in the water will rot. Julie Thompson-Adolf is a master gardener and author with 13+ years of experience with year-round organic gardening, seed starting and saving, growing heirloom plants, perennials, and annuals, and sustainable and urban farming. Then pot up the plants in a good potting mix. Winter: Over the winter, pinch back the tips of new shoots to help them branch out. 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