I've been very pleased so far with two plants of the Buxus variety called 'Rochester' which have sailed right through two very serious Maine winters. I've got them flanking my front steps, so they tend to get buried and re-buried in snow as the porch and sidewalk are shoveled and the weight of the double layer of snow bears down on them. In spring they bounce right back, regain their former shape, and put out vigorous new dark-green leaves -- just like the catalog promised they would. Now, in their third summer, I'm trying to decide whether or not to prune them. (They are still only about 15 inches tall.) My reasons for not wanting to prune them are: â€¢ I'd like them to get tall enough to hold their heads, so to speak, up above the snow level, since the whole point of evergreens is to have something green to look at in winter. â€¢ Thus far, their natural shapes are appealing, and rather in keeping with the informal character of the plantings around them and with the "cottagey" style of the house itself and its woodland setting. Are there compelling reasons, though, why I ought to prune these shrubs? Would it, for example, encourage fuller or sturdier growth, or prevent them from getting leggy over time? I anticipate that I will want to prune them at some point, to maintain a certain degree of shapeliness. But I wonder how long I can safely put this off. Thanks for any thoughts.