|My 3-year-old, 4-foot-tall arborvitae look terrible. The branches are long and somewhat bare near the trunk and they just don't have that bright green healthy look they had when I bought them. I occasionally give them a shot of fertilizer in the spring and summer. I also tie them up to protect them in the winter. Should I be pruning them too?|
| stubs showing all year.
Finally, consider mulching the plants each spring with a layer of compost. stubs showing all year.
Finally, consider mulching the plants each spring with a layer of compost.
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