Answer: Clematis climb by twining their leaf stalks around whatever support is available. Begin by tying it, but as it grows it should begin twining around the post on its own. Or you can surround the post with a cylinder of 2" x 4" heavy wire mesh, staked securely to the ground, and allow the clematis to climb that. When tying the vine, use garden twine or twist ties, and be careful not to crush the stems, which are very fragile.
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