Naturally, crunchy cucumber plants grow in climates with temperatures of 75 to 85 degrees Fahrenheit (23.9 to 29.4 degrees Fahrenheit). To make best cucumber plants, wait for those warmer days to arrive, there are steps you can take to protect your cucumbers from frostbite. The climate with 32 degrees Fahrenheit or higher bring frost, which kills cucumber plants. Temperatures around 50 degrees will cause cucumber plants to grow slowly, eventually destroying them. Cucumber seeds will not germinate in soil cooler than 60 degrees Fahrenheit. When spring finally arrives and the ground turns, it’s so tempting to plant the seeds and start your garden right away. However, you don’t want to rush as some plants are frost-sensitive (notably cucumbers). In this article, we will discuss the temperature ranges that cucumber plants can tolerate. We also look at cold hardy cucumber varieties and how to protect your trees from frost to grow crunchy fruits. Let’s get going. Cucumbers are tropical trees native to India. Like other grape crops (like strawberries and melons), cucumbers are very hardy. Cucumber seeds will not germinate in soil cooler than 60 degrees Fahrenheit. To be on the safe side, start cucumber seeds indoors to keep them warm enough to germinate. Cornell University recommends growing cucumber plants in the garden outdoors after the soil has warmed to 65 degrees Fahrenheit (18.3 degrees Fahrenheit). This is usually about two to three weeks after the last snow date in your area. You can use this resource from Old Farmer’s Book to find snow days in your area. According to Penn State University Extension, air temperatures as high as 50 degrees will stunt the growth of cucumbers. To prevent this, you can use bushes to protect young trees or tree covers to protect mature trees. According to Georgia Extension, cucumbers flower and grow best at temperatures of 75 to 85 degrees (23.9 to 29.4 degrees). Can Cucumber Trees Survive Frost? The cucumber tree cannot survive the cold without protection because it is a warm crop. Keep an eye on the weather forecast and be prepared for the snow forecast! According to Texas A&M University, even a light frost will kill cucumber trees. Cooling occurs when the air temperature is around 32 degrees. Since temperature is so important for the growth of cucumber trees, we will spend some time on ways to keep them warm and protected from frost. The best way to prevent frost damage is to choose cold-tolerant varieties of cucumbers. Choose the best cucumbers One way to protect your cucumber trees from frost is to choose the right varieties first. Depending on where you live, the USDA rootstock crisis zone map will show you where you are. Generally, the lower the number of zones, the harder it will be to grow warm waters like cucumbers. If you live in a colder region, consider cold-tolerant or early-maturing cucumber varieties to produce an equal amount of ingredients for your benefit. Cold-tolerant varieties of cucumbers I did some research to find cold hardy varieties of cucumbers that grow well in cooler climates. Here are some examples:
- Socrates – Socrates cucumbers ripen in 52 days and are cold tolerant. The fruit is 7 to 8 cm long, with smooth, seedless skin. This species is parthenocarpic, meaning it reproduces without pollination. It can also fight powdery mildew. You can find Socrates cucumbers at Johnny’s Seed Selection.
- Corinto – The Corinto cucumber is an F1 hybrid, matures in 48 days, and tolerates frost better than the average cucumber plant. The fruit ripens early, is 7-8 inches long, and has smooth skin. Resistant to various cucumber diseases, such as powdery mildew. You can find Corinto cucumbers at Johnny’s Seed Selection.
- Wisconsin – Wisconsin cucumbers are roasted cucumbers that ripen for 65 days and are grown and produced in cooler northern states. Resistant to various cucumber diseases, including cucumber mosaic virus. Wisconsin cucumbers can be found at West Coast Seeds.
Even if you choose cold-tolerant cucumber varieties and make the most of your growing season, you may still be in for a surprise. While winter days are generally reliable, you will occasionally see a blooming season with dramatic weather conditions. Either way, you should keep an eye on the weather forecast, especially as it gets closer to growing your cucumber seeds outdoors. If the forecast calls for unusually cold weather or a very cold night, leave the cucumber seeds a little longer to protect them. By choosing a cold-tolerant cucumber variety, you can avoid planting them too early. However, it’s always a good idea to check the weather and plan accordingly. Choose the best location Once you’ve planted some of the cold-tolerant cucumber varieties discussed earlier, you can place them in cooler areas of your garden where there’s a little less sunlight. However, cucumbers grow best in full sun and are also best in a sunny spot in the garden. Also, more sun warms the earth during the day and the heat lasts longer at night. By protecting them from frost, your cucumber plants will also stay a little warmer at the start of the season. There are several ways to protect cucumber plants from frost and wind, including snow windows, black plastic, sage, and greenhouses. Now let’s take a closer look at these safety precautions against the cold. How do protect cucumber seedlings from frost and frost? There are many ways to protect your cucumber plants from freezing and frost. Let’s start with cool frameworks. Use a cold frame for seedlings There may be times when you want to plant your cucumbers a little earlier in the season than recommended. There are other times when your partner yells at you for having too many plants in the house. Either way, a cold tray will help keep your plants warm after taking them outside. The cool frame is a short tree with a glass top that looks like a small tree. Many cold frames open automatically when the internal temperature rises too high. They close when it snows and somehow “self-regulate” their internal temperature. It automatically opens a cooling fan to prevent the wood from overheating. When your cucumber seeds are mature enough, you can put them directly in the refrigerator. To see if the temperature will be warm enough to transplant cucumbers, place the thermometer in the refrigerator and check it daily. A max/min temperature gauge (like this one from A.M. Leonard) will help you get an idea of how cold and how hot the snowpack is at any given time. As always, check the weather and be prepared for unusual snowfall or icy conditions! Use black plastic to heat the soil If it’s sunny but cool, you can use sunlight to your advantage to warm the ground. Take a piece of black plastic and place it in the soil where you want to plant your cucumber. Black plastic absorbs most of the sun’s energy and heats the air and soil below. This then prevents heat from escaping from the ground and air underneath the plastic. Just use a spatula to poke holes in the plastic and plant cucumber seeds in the holes. Plastic is water-repellent, so just make sure you have plenty of moisture on the floor before replacing the black plastic. You should also use fertilizer before putting the plastic down if you want to keep it in the growing season. Conclusion Now you know how cucumber trees can withstand the cold before freezing or freezing to death. You also learn how to protect your crunchy cucumber plants from frost, extend the growing season and improve yields.