A Vine Trellis

It is known to train grape vines to grow on a trellis comprising a series of wires supported by a line of posts. However, a problem with many known arrangements is that a large number of heavy and therefore relatively expensive posts are used, and it is difficult to machine-prune the vines after harvest without interference from the wires. Preferred embodiments of the invention address this with a trellis supporting a plurality of growing vines in a manner that cane growing from the vine's cordons can be readily removed to rejuvenate the vines. The trellis has a plurality of metallic primary posts 1 and a plurality of metallic secondary posts 2. The posts 1,2 extend from the ground in a line such that between each neighing pair of the primary posts there are at least two of the secondary posts. A cordon wire 3 runs along and is supported by the posts at or adjacent to the top of these. The cordons of the vines are connected to, and grow along, the wire 3 such that at least most foliage and grapes forming part of the vines grow below the wire 3. The wire 3 is held by the primary and secondary posts above ground level in a manner than it can be non-destructively pulled upwards to free it from the posts. This may occur after the cordons have been severed from the rest of the vine. The cordons may then be readily stripped from the wire.