The greenhouse season is about to start at the time of writing. Temperatures are now above freezing during the day, the sun is getting hotter, and a light frost is no longer an obstacle when crops are covered. Even fluctuations in the cold at night are not a problem with a tarp stretched over the structure. For those who already have a greenhouse, it is time to spend some time maintaining the facility and ensuring that it is still fully operational after winter. We will discuss the precautions to take in the following article.

Control after winter
Whether the gardener is growing all year round or taking a break during the colder months, tunnel maintenance is probably necessary. This ensures smooth crop growth during the season. Neglecting maintenance can lead to bigger problems for the producer in the form of a torn tarp, poor thermal insulation, and the development of pathogens. Here is a list of tasks to do before each growing season:
Greenhouse cleaning
It is recommended to check every cm2 of the greenhouse, as well as between the cultivation sites. Remove any plant residue, weeds; examine the condition of the geotextile. Remove the mulch or other garden substrate from the affected plants.
Greenhouse tarp/membrane
If the plastic film was in place all winter, it should be stretched and then inspected carefully. Check for holes, tears, or distortions. If you find any, there are two options. One of them is the use of greenhouse tape. It is applied to the damaged area, preventing the extension of the cut under wind pressure. It may also be that the tears are too large. In this case, replace the entire cover with a new one. There is a wide choice on the market: this membrane represents an essential element of the greenhouse. We encourage you to choose the one that will suit your needs.
Cleaning and sterilization of the structure
After repairing the tarp, it’s time for sterilization. This is necessary if the producer wishes to avoid the development of pathogens that may play a role in the development of the disease. The whole process is performed with a high-pressure washer, water sprayed directly from a garden hose. The stores offer equipment specially designed to carry out this task.
Greenhouse structure
Proper maintenance of the frame ensures that it will be operational for years. However, look for signs of corrosion on the elements. If this is the case, it is advisable to replace the defective item with a spare part. Such an operation contributes to the longevity of structures made of steel tubes and profiles, limiting the risks of deterioration. The corners of tubes shall also be inspected to avoid sharp edges. It’s a safety concern as they can cut hands and membranes. The accessories most sensitive to corrosion are those placed near the ground, where moisture is present. Corroded tubes should be replaced as the deterioration can be spread further. These tubes and segments can be procured from the manufacturer upon special order. Tightening the screws, nuts, and leveling the frame are other tasks to perform when checking the structure.
Disinfection of gardening tools
Before cultivating, it is worth disinfecting each tool, even if it was already done at the end of the previous season. This is not strenuous work and will prevent plants from being exposed to pathogens. Planters, tables, pots, etc. must also undergo the same treatment.
Disinfection of gardening tools
Before cultivating, it is worth disinfecting each tool, even if it was already done at the end of the previous season. This is not strenuous work and will prevent plants from being exposed to pathogens. Planters, tables, pots, etc. must also undergo the same treatment.
Earth in a garden tunnel
Even with the best crop rotation and the best fertilization, it is essential to let the soil rest. In the case of small tunnels for vegetable gardens, it is sufficient to dismantle them and move them to a new site. A similar process will have to be repeated every 4 or 5 years. It all depends on the intensity of the culture. With big-scale constructions, it is more complicated. Usually, it is necessary to replace the substrate with a new one. A similar operation is essential with the planters: remove the old compost and renew it.