Each trellis consists of a single wire at the height of the T-shaped trunk of the vine, and two further wires at the top. The top wires have to be lowered during pruning, and raised just at the right moment to keep the vertical shoots in an upright position.

The wires have to be checked each spring, and those that have loosened off are tensed using the clip-like keys shown on the right. This is a pretty tedious and time consuming job, although it is surprising just how long the wires actually last. Few had broken since last year, although most needed tensing.

On the left Sergi can be seen going over the trellis wires. In fact the shoots are just too short to raise the wires at this point, although they are growing very quickly indeed at this stage.

Thee weeks later (see right and below), and the wires are now in position at the top of the trellis. Note how they keep the vine almost vertical, although subsequent growth will fill them out a little, and vertical shoots will start to droop sideways as they grow higher