Insulate your greenhouse
As the temperature drops, it’s important to insulate your greenhouse to maintain a favorable environment for your plants. Insulation traps heat inside the greenhouse and minimizes heat loss. Fluorescent plastic sheeting and bubble wrap are excellent options for insulation. Place the plastic sheeting or bubble wrap on the inside of the greenhouse and secure with clips or staples. Ensure that they cover every inch of the greenhouse walls and roofs.
Install heating sources
During the cold winter, your greenhouse needs additional heat sources to keep your plants from freezing. There are many heating options available, such as electrical, propane, and natural gas heaters. Electrical heaters are inexpensive to buy and operate, but they are not suitable for large greenhouses. Propane heaters are a bit costly but efficient for larger greenhouses, while natural gas heaters are the most expensive to install but cost-effective in the long run. Choose the source that suits your greenhouse’s size and your budget.
Cut down on watering
In winter, plants don’t grow as vigorously as they do in warmer seasons, which means that you don’t have to water them as much. Overwatering is a common mistake made by greenhouse owners, and it can lead to waterlogging and root rot. Water your plants only when the soil is dry to the touch. However, don’t let the soil get too dry as this can lead to dehydration. Strike a balance by watering less but ensuring that the soil is always moist.
Clean your greenhouse regularly
Greenhouses tend to accumulate dirt, dust, and dead plant material over time, which can harbor pests and diseases. Regular cleaning of the interior and exterior surfaces eliminates debris and makes it easier for sunlight to penetrate the greenhouse. Additionally, cleaning ensures that the greenhouse is free of pests hiding in corners or crevices. Use soapy water and a scrub brush or power wash to clean the greenhouse.
Protect your greenhouse from pests
Winter is the season for pests, and greenhouses provide a conducive environment for them to thrive. Some common pests that affect greenhouse plants include aphids, whiteflies, and spider mites. They can damage or kill your plants if not controlled early. To prevent pest infestations, ensure that the greenhouse is clean and free from debris. You can also introduce predatory insects such as ladybirds and lacewings to your greenhouse to keep pests at bay.
