Even in severe frosts down to -40°C, grapes can meet spring healthy and full of strength. The secret is a simple and effective cover that will protect the vine without the use of chemicals. The main thing is to understand the principle: grapes need not so much a warm coat as a stable temperature and protection from moisture.
Wait until the daytime temperature drops steadily to -5…-7°C. By this time, the grapes will shed their leaves and the vine will undergo natural hardening. Don't rush – early covering can lead to damping off.
Simple shelter technology:
Laying the vine
Gently bend the cut shoots to the ground and secure with metal staples. Place dry boards or spruce branches under the vine – this will protect it from contact with cold ground.
Create an air cushion
Install arcs 20-25 cm high above the laid vine. Air space is the best heat insulator; it works on the principle of a thermos.
Multi-layer shelter
First, cover the arcs with a dense covering material (aggrofabric) and on top with plastic film. Be sure to leave vents underneath for ventilation. In severe frosts they can be closed, but during thaws they can be opened.
We insulate the roots:
Mulch the tree trunk circle with humus or compost with a layer of 10-15 cm. This will protect the root system even in a snowless winter.
This method of shelter is not only simple, but also environmentally friendly. It creates an ideal microclimate for wintering grapes: it protects from frost, prevents damping off and keeps the vine healthy until spring. When you remove the cover in April, you will see elastic buds ready for the new season – the best reward for a caring winegrower!
