Answer: The colors on your dappled willow will intensify in full sunshine and the standard nursery practice is to prune it back hard in early spring to encourage development of new shoots which are the most colorful. (Older foliage will fade to green.) So, to encourage the most colorful foliage, prune your dappled willow back in the spring, and prune out some of the oldest stems in early summer. This will prompt your plant to produce new shoots which should have the variegated hues. Best wishes with your garden!
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