Growing any plant in a container makes it more vulnerable to the cold of winter; instead of being deep underground, the roots are separated from the cold air by just a thin wall. Prune your blueberry bushes late in the winter or early in the spring, when the plants are still completely dormant. Either way helps to add extra protection around the roots. Plastic containers will crack, clay pots will shatter, and so on. If you're growing a blueberry bush in a pot, there are several different varieties which are perfectly suited for that type of medium. Be wary of using thin-walled pots and hanging baskets. Use pruning shears to remove any diseased, weak or spindly branches and any canes that are more than six years old. Some plants like bougainvillea, banana trees, oleander, kumquat or abutilon would tolerate neither a cold winter outdoors, nor a hot stuffy winter inside the heated indoors of a house.. Here’s the solution to this conundrum: Bring them to a cold greenhouse, a garden shed with windows, windowed cellar, or an “orangerie” if you even want to use the poetic word for this, around mid-October. Place the blueberry into the potting media and plant it the same depth as it was in its container. Bare root blueberries show up in nurseries in late winter and early spring. This plant are resistant to most diseases and pests. One of the most critical factors for successful blueberry production is providing an ideal soil pH in the range of 4.5 to 5.0. The more soil in the pot, the better insulated the roots will be from the weather. Plant your blueberry bush in the soil and add mulch on top to retain moisture. Perennial Plants that Overwinter Well in Containers It may mean the difference in winter survival for your plant. Don’t Deep Freeze. When using lightweight plastic, foam or resin pots, top-heavy plants can topple over when hit with strong wind, so be careful to avoid causing winter injury to plants. Place containers in full sun, but protection from late afternoon sun may be necessary. Instead of swapping pots, you can put your existing container into a larger pot and fill the sides with mulch or soil. In the winter, cover the blueberry bush with burlap or straw. We know that too much water is a bad thing. If the shrub is pot bound gently tease the roots to encourage root expansion into the potting media. Blueberry bushes are easy to grow indoors, you can grow it at home in pots or containers. Blueberry bushes should be pruned once a year to ensure good fruit production. Check your pots regularly and replace or repair as needed. Winter and early spring, when blueberry bushes are in their dormancy period, is the best time to plant new bushes. 4. Foam-lined containers have a bit more insulation but they will also crack and split over time. Foam or resin pots come in a variety of looks and can be a lightweight alternative to concrete and metal. The blueberry is a wonderful fruit rich in vitamin C, dietary fiber, and vitamin E. Due to its popularity, there is a growing interest among gardeners to plant blueberries in backyard gardens. Give your plant frequent light waterings or invest in a drip irrigation system. Water regularly, keep away from high winds, and place in a sunny spot. “Dig a pit and cover with poly (plastic sheeting) and straw to over-winter some smaller containers,” Mathers said. Then water well. Overwintering Blueberry Bushes in Containers.

how to winterize blueberry plants in pots

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