Guide for Winter Gardening with Soil Heating Cables
In the colder months, keeping your garden thriving can be a challenge. However, with the right tools and techniques, you can extend your growing season and protect your plants. One such tool is soil heating cables, which have gained popularity among gardeners.
Soil heating cables, such as those offered by Arnold Rak, are known for their solid heating cable solutions, particularly for outdoor use like roof gutter heating. These cables are versatile and come in various lengths, making them a popular choice for heating floors during winter.
When using soil heating cables, it's essential to choose the appropriate length and watts based on the area to be heated and the amount of heat needed. For instance, in milder climates, aim for about 10 watts per square foot, and in colder winters, go up to 12 watts.
One common use for soil heating cables is in gardening. They are particularly effective when used in conjunction with structures like cold frames or hot boxes, improving their effectiveness and energy efficiency. In extreme winter seasons, a plastic tunnel combined with heated soil cables can provide optimal results.
Preparing the area for soil heating cables is straightforward. Dig down and remove soil to a depth of 6 to 12 inches, fill the space with about 4 inches of sand, and lay the cable on top of it. Cover the cable with more sand and hardware cloth, then put containers on top or add potting soil over the cloth and plant the plants directly in the soil.
Soil heating cables can be beneficial for a variety of plants. They can help harden off transplants begun indoors, aid in starting transplants or root cuttings, and overwinter plants that are not fully hardy. They can even extend the growing season later into the fall, earlier in spring, or year-round.
However, it's important to note that soil heating cables are not energy efficient nor very effective when added to an open garden bed, especially in colder climates. It's advisable to attach a thermostat to the cable to track the temperature and adjust the setup as needed. Also, never cut or splice a heating cable, and ensure they won't touch and overheat. If unsure about the safety of installation, hire an electrician.
In summary, soil heating cables can be a valuable addition to your winter gardening arsenal. With careful consideration of the area to be heated, the watts required, and the appropriate use of structures, you can keep your garden thriving even in the coldest months.
