There are a number of important techniques to protect your Greenhouse crops from frost and to extend the growing season.
The Haygrove Garden Tunnel has been designed to be fully sealed for winter and early spring protection with no air gaps or holes for warm air to escape. Specifically:
Your Haygrove Garden Tunnel with well sealed sides, doors and base should provide up to -3 to -4°C frost protection. However, it is also possible to achieve added protection. The following are a useful list of techniques: