Cool Weather Gardening Along the Gulf Coast

by Tom Garner and Renée Perry

When we think of gardening, we almost always think of spring, but did you know that along the Gulf Coast fall and winter are also great times to grow your own fresh vegetables and herbs? In fact, cool weather gardening is, in many ways, the easiest time to garden, especially for those who are just beginning to learn. Cooler weather means fewer pests and diseases, less frequent watering and little weeding—particularly if you use the weed-free gardening method we do. Cooler weather means more comfortable conditions for the gardener, too!

Cool weather gardening also offers a diverse selection of vegetables to choose from. We can grow brassicas like broccoli, cauliflower and cabbage; root crops such as beets, carrots and radishes; and cooking greens including collards, mustards and kale. We can also grow herbs including cilantro, parsley and dill as well as legumes like English peas and fava beans. There are also edible bulbs including onions, garlic and leeks; salad greens like lettuces and spinach; and European specialties such as radicchio, endive and fennel bulb. There’s an amazing variety of cool weather vegetables and herbs we can grow successfully here on the Gulf Coast!

So, when is cool weather gardening along the Gulf Coast? Our seasons, and our timing, are different from anywhere else in the country. Getting the timing right, particularly what to plant when, is essential for successful vegetable growing. Our Gulf Coast summers are long compared to most of the country. 

This means that our fall gardening season starts later, and our spring season comes much earlier. The good news is that our winters are much milder than most of the country, so we can enjoy home-grown vegetables year-round rather than having to sit out snow and ice waiting for spring to come.

Cool weather gardening along the Gulf Coast generally begins around September or October, but every year is slightly different. If fall temperatures are still in the 90’s, as they have been in some recent years, it’s wise to hold off planting cool weather vegetables until the temperatures begin to come down. 

Mid-December marks the beginning of Gulf Coast winter, which is shorter and milder than most other parts of the country. In fact, our winter ends and our spring begins in about mid-February. This is when experienced gardeners know to plant out tomatoes started from seed during the Christmas season.

Many cool weather vegetables can then continue to grow as late as April or May, right alongside the warmer weather vegetables we plant for spring.

Although pests, diseases and weeds are not a serious issue during cool weather, there is one issue cool weather gardening has that warm weather gardening does not: freezing temperatures. While all cool weather vegetable plants can survive temperatures below 32 degrees, different kinds of plants can survive different degrees of temperature below freezing. For instance, broccoli and cauliflower can survive temperatures down to about 25 degrees. Carrots and onions will survive temperatures lower than we’re likely to see along the Gulf Coast. Knowing what temperatures specific vegetables can handle will help you know when to prepare for a freeze.

Fortunately, below freezing temperatures happen rarely during our winter season, generally from about December through March. In addition, freezing temperatures typically occur only overnight.

Plants that are susceptible to low temperatures can be covered with a blanket at night, and the blanket removed during the day. Make sure that the edges of the blanket are held down on all sides to trap heat from the ground. Also, be sure the blanket is supported from below so that fragile plants are not damaged by the extra weight.

One final cool weather issue to consider is sunlight. In winter, nights become longer and days become shorter. This means there are fewer hours of sunlight available during the cooler seasons than the warmer seasons. Fortunately, cool weather vegetables require fewer hours of sunlight than warm weather vegetables.

The sun also remains lower on the horizon during the cooler seasons. This lower position of the sun means that shadows cast by objects such as buildings or trees will be longer, and a garden that is in full sun during warm weather might be in complete shade during cool weather. Even a hedge or privacy fence can result in shade if they’re too close to the garden on the southern side. Be sure that vegetables are planted far enough away from objects to their south to prevent this cool weather shading.

You don’t have to wait until spring to have tasty, fresh and nutritious home-grown vegetables and herbs! Cool weather gardening is just as productive as, and in many ways easier than, gardening in the spring. If you’re new to gardening, cool weather is the ideal time to get a little dirt on your hands and learn to grow!

About the Authors

Renée Perry and Tom Garner are the owners of East Hill Edible Gardening. They specialize in teaching gardeners how to grow their own fresh vegetables, fruits and herbs in the unique gardening conditions along the Gulf Coast. They offer a variety of gardening classes, garden consultation, installation and one-on-one garden coaching. They also sell an extensive variety of vegetable and herb plants specifically suited to the Gulf Coast.