Which Flowers to Cover When it Frosts?

Growing flowers can be a very enjoyable way to beautify your yard or garden. There are so many varieties that have colorful blooms that last throughout the season. Some are very hardy and can easily withstand a change in the temperature. However, some flowers can be very delicate and need extra care when those temperatures begin to drop. These flowers will have to be covered or brought inside on those chilly spring nights.

Potted Annuals and Houseplants

Most annual plants and any type of houseplant need to be protected during a frost. These include African violets, begonias, gardenias, impatiens and petunias. The leaves and greenery may withstand colder than usual temperatures. However, the tender flowers of most houseplants and annuals will not. Many houseplants that do not have flower blooms are also very tender and must be kept indoors during the fall and winter.

Blooming Bushes

Many blooming bushes also cannot tolerate a hard frost. This is the case with bushes such as azaleas, snowball bushes, forsythia and some hydrangeas. If there are flowers already blooming on these bushes when a frost is expected, the bushes must be covered during the night when temperatures reach their lowest. There are products available that can be sprayed on bushes to prevent damage from frost, but simply covering them with newspapers or old towels or sheets works just as well.

Vining Flowers

Vining flowers are some of the most popular types of plants, but they can also be some of the most tender. Vines such as morning glories, clematis and ivy-leaved geraniums can be easily killed by freezing temperatures. Unfortunately, these flowers tend to vine at rather tall heights and protecting them from frost completely may be more difficult. Giving them extra water and hanging heat bulbs near them may be the most convenient way to protect them from freezing.

Subtropical Plants

Subtropical plants such as hibiscus, some jasmines and bougainvillea can also have a low tolerance for colder weather. If possible, it is best to plant these types of flowers in large containers that can be easily moved to a safe location when a freeze warning is in effect. They can also be covered with a product known as a "seedling blanket" to help protect them from frost.

Keywords: flower frost protection, frost on flowers, frost prone flowers

About this Author

Susan Steele has been writing for more than 20 years. Her work has been featured in online publications, such as eHow.com and StarReviews. While attending Ashland Community and Technical College, Steele says her favorite courses were English and literature. Steele has enjoyed working for Demand Studios since June 2009.