ext.colostate.edu/ptlk/1345.html Although you should mist the plant occasionally, misting … Place the plant on top of a tray of pebbles and water or run a small humidifier nearby. The drying nature of most heat can cause a … Plus it gives you some gardening to do during the cool winter months. brrrrrr! They can survive extremely cold temperatures. Since gardenias love warm, humid conditions, gardeners must perform several steps to winterize them. The gardenia is an outdoor plant that does best in locations with bright morning light and some protection from the afternoon sun, but with care, can be grown indoors. Some hardy gardenias grow in zone 8, and a few new ones survive in zone 7. Despite your best efforts, the tips of the branches may die and turn black from frost or cold damage. 6. Some gardenia varieties are more hardy than others and may survive in your zone 7. Plants experience cold damage at 15 degrees Fahrenheit and lower, so be sure to cover plants with a breathable fabric or other materials on those coldest nights. The gardenia is not zoned to survive here in this clime planted outdoors. Winter can be drying to plants unless you live in a rainy area. However, if you’re not too sure, you can grow herbs indoors instead. Some plants might not survive over winter! The cultivar ''Chuck Hayes'' is hardy in Zones 6 though 10, makes a good container plant and produces double blossoms with the traditional gardenia scent. In fall around the first frost, apply a heavy layer of mulch around plants to protect roots from winter cold. The hardiest gardenias are rated only to USDA Zone 6 (minus 10 to … in professional writing. A gardenia kept indoors over winter needs a location near a sunny window where it can receive at least four hours of direct sunlight each day. Adding an extra layer of mulch can help to protect the roots. Canada's plant hardiness map provides insights about what can grow where. Gardenias grow outdoors in U.S. Department of Agriculture plant hardiness zones 8 to 11. Gardenia is one of the easiest shrubs of all to root. Be ready for unexpected cold snaps by keeping supplies on hand to protect your plant. Get through the bulk of the winter then move them. Outdoor container grown plants can be overwintered in a sheltered location and insulated with bubble wrap in areas just outside their growing zone, or one zone lower. Sign up for our newsletter. In fact, oil from gardenia blossoms is frequently added to perfumes, body lotions and home fragrance products. Chives | Like most alliums which are grown from bulbs, these perennial herbs regrow in the spring. A. Hardy Gardenia Varieties Frost Proof Gardenias, Winter Hardy Gardenias, Hardy Cape Jasmine. You can still enjoy growing gardenias outdoors during the summer months in these regions by replacing them each year, treating them as annuals. Once you have found a good place for your gardenia indoors, your next challenge is moderating the humidity. © Copyright 2020 Hearst Communications, Inc. This allows the bush to begin going into a dormant stage. The 2nd one survived but half of it died. If possible, wait until after it blooms. 40 degrees in august - i just can't imagine. Beauty and fragrance are the reasons many gardeners plant gardenias among their landscapes. Previous Next. Gardenia plants can get winter damage in a cold winter, and if you move them or prune them this late, they will be more susceptible to damage. In USDA Plant Hardiness Zones 6 and lower, winter brings on hard freezes that kill plants, especially those grown in outdoor containers. Those delicate flower buds, so filled with promise of good things to come, begin dropping from the plant in droves. Signs that the temperature is too cool include slow growth and yellowing leaves. Start your flower seeds. Clean the plant with a strong spray from a water hose and thoroughly examine the foliage for insect pests before bringing it indoors. Her fiction writing appears in "Bewildering Stories," "The Other Herald" and "Spectacular Speculations. But, then, the plant enters the home environment where hot, dry air and gloomy winter days send the gardenia in a downward spiral. Sign up to get all the latest gardening tips! Gardenia winter care in areas that experience snow includes protecting the branches from the weight of heavy snow accumulation. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. A cardboard box large enough to cover the shrub without bending the branches is a must when temperatures drop. However, like these chives, they push their limits by growing through to the frost. The plant requires 70-degree temperatures during the day and no lower than 62 degrees at night. 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