Cover the plant during cold nights with a plastic bag. If frost threatens, cover the plant to protect it. Tender perennials, such as bougainvillea (Bougainvillea spp.) Then cover it again with a slightly larger bag. These Bougainvillea Care Tips will help you grow them successfully!. ), hardy in USDA zones 9 … and duranta (Duranta spp. Try planting them underneath the protection of a tree or under the eaves of your home and enjoy … Protection. A smaller bougainvillea in a container like this one would be much easier to protect from a night or 2 of freezing temps. so water and cover. This page is formatted to print nicely on a standard sheet of paper. I’ve never protected my bougainvilleas here because they’re fairly large. Bougainvillea, Barbara Karst All of its leaves were immediately killed by the frost. Links to more frost damage information Frost Damaged Plants Frost Protection Cold Tolerance. If you are growing bougainvillea in a cold region, plant it close to a dwelling or on a down slope to reduce the risk of frost. It can withstand a light freeze but deep freezes will kill the roots. Before pruning, wait until after the danger of frost is past in the spring, and you begin to see new growth. This will trap in warm, moist air between the 2 bags to keep the plant insulated. At 8 weeks new sprouts appeared close to the base of the plant. For tropical climates, Bougainvilleas are a boon, as they are going to offer you an all year floral fiesta! Plants most in need of frost protection are the tropicals such as Citrus, Hibiscus, Bougainvillea, Aloe, Bananas, Brugamansea, Poinsettia, Canna or Ficus. ... Cover plants to help protect against frost or freeze. Younger plants are more susceptible to frost damage than mature plants. Severely damaged tomatoes, peppers, and other plants grown as annuals may need to be removed. When Winterizing a Bougainvillea is Necessary. 1. When it comes to growing Bougainvilleas, you have to be sure of many things! Good bougainvillea winter care can ensure a healthy plant that will produce copious quantities of brightly colored flower bracts. Bougainvillea is hardy enought to withstand a light freeze but deep freezes will kill the roots. Bougainvillea does not have a big frost tolerance, and plastic bags are a great protection for them. I do protect my fleshy succulents and a few other plants with old sheets and pillow cases. Frost may be deadly to our garden crops, but practicing a bit of vigilance and having some supplies at the ready can make a huge difference in protecting your delicate plants from the cold. It is important to protect these frost sensitive plants like lantanas, bougainvillea, natal plum, citrus trees, cape honeysuckle, myoporum, any variety of ficus trees, and any tropical type plant. So, if you love Bougainvillea, Lantana or other frost-susceptible plants but have avoided using them because you can’t stand their “ugly stage” in the winter – there is hope! Karyn Norman/Birds and Blooms. Bougainvillea is hardy to United States Department of Agriculture zones 9 to 11. N-Sulate will protect down to 22° F or 25° F Tenting material must be applied in the late afternoon and then removed each morning to take advantage of the sun warming the earth again. However, those same frost-tender plants whose colorful blooms we enjoy during the warm months, often need extra protection when cold snaps hit in … Bring Potted Plants Inside. DIY Frost Protection for Plants. For those of us who live in areas that experience relatively mild winters—we are fortunate to be able to grow semi-tropical and/or tropical plants such as Bougainvillea, Lantana and Yellow Bells outdoors.. The damaged limbs and branches protect the plant from further frost damage. How to Protect Your Plants from Frost. Prune back to just before where the new growth begins.