Plants that grow well in a polytunnel
Polytunnels are designed to maintain a temperature that is more comfortable for plants than outside temperatures. This temperature varies depending on the time of year and the outside climate. During the winter, polytunnels are generally at around 30 degrees. In the summer, the temperature will be slightly higher than outside. This can be beneficial for a number of crops.
There are a number of plants that grow well in a polytunnell, including herbs such as rosemary. This versatile plant can flower and set seed the following year. It is a wonderful way to extend your gardening season. It is easy to grow and doesn’t require much care.
If you don’t have a greenhouse, a polytunnel can be used to grow vegetables all year round. Make sure to check the crop season in your area and select crops that will do well in the climate. You’ll also want to rotate crops in your polytunnel to make sure you get the best yields. A polytunnel can also be a useful space for larger fruit trees. If you’re planning to grow these, remember that their tall growth can stunt growth and damage the polytunnel.
Ventilation of a polytunnel
Proper ventilation of a polytunnel is essential to keep plants healthy during the colder months. In addition to controlling the amount of heat and humidity in a polytunnel, regular ventilation will also help reduce overheating. Regular ventilation can be achieved by widening entrances and raising sides. This can help ensure air flow in the greenhouse and prevent condensation and mould growth.
Polytunnels should be ventilated every day to reduce the temperature inside. A temperature of 90 F outside is equivalent to 32 degrees Celsius inside. This temperature can cause the fruiting process of tomatoes to stop. During this time, the temperature should be kept below 80 F.
Whether or not you have doors in your polytunnel will depend on its use and whether you want to keep the temperature comfortable for your plants. If you don’t want to compromise on ventilation, choose polythene blinds. These can be rolled down on the outside of the netting, allowing you more flexibility.
Protection from frost
Polytunnels can be a valuable asset in the garden. They can be used to protect crops from hard frost. The plastic layers of polytunnels contain air bubbles that can trap heat and prevent it from escaping. The bigger the air bubbles, the better; they also collect more light, which improves the heating process. In addition, removing snow from the tunnel can reduce heat loss by up to 30%.
Polytunnels can also be used to grow crops over the winter. These structures are often insulated, which can help to keep the crops alive. Double-layer polytunnels are better insulators than single-layer polythene. However, double-layered polythene polytunnels are more expensive than ordinary polytunnels and don’t allow for much light.
Frost damage can be devastating for crops grown in polytunnels, so it is essential to take measures to protect them. Most varieties of vegetables can cope with low temperatures, so you may want to consider what will thrive in your area. You can also take inspiration from your neighbours’ patch and look at their growing techniques. These methods don’t have to be complicated, but they are effective and can help you grow the vegetables you want.
Cost of a polytunnel
A polytunnel is an investment that can pay off over time. They provide a long growing season and a higher yield. The cost of a polytunnel varies according to its size and construction. There are cheaper versions available that can be used to experiment, while the more expensive ones should be bought with a view to long-term use.
The material used for the frame of a polytunnel is important. The frame gives the structure of the tunnel stability and durability. Choosing the right material for the frame will impact its durability and insulation. Steel frames are more durable, but can become brittle over time. In the winter, a steel frame can easily collapse under snow, which can compromise the structural integrity of the tunnel.
Polytunnels are useful for growing plants that are difficult to grow outdoors. Asparagus and globe artichokes are excellent examples of plants that thrive in polytunnels. You can also use these plants in a variety of recipes.