These trees should be pruned in fall after the leaves have.
Nov 08, Prune back your sycamore before the first buds start to come out in the spring. If you do not make it in time, then you can still remove the dead branches.
Wait until the fall, though, to remove any live branches. This will help the tree as it goes dormant for the winter and give it a boost in the springtime the next year. If you are pruning a sycamore tree simply to remove unwanted branches, it is best to undertake the work in June. However, if you are looking to heavily prune the tree, you should leave it until later in the year, preferably between October and December.
Proceed with caution though, because you need to avoid damaging the collars of the branches by keeping the pruning flush with them. Sycamore – Pruning, Winter Care and Fertilizing. Sycamore or Planetree. These trees should be pruned in fall after the leaves have dropped or in early spring, before the sap starts to flow (March). If needed, a few small branches can be removed in summer after the leaves have reached full size.
The time to make a long lasting effect on the form and structure of the plant is when the tree is young. Sep 13, Prune the tree back before the first springtime buds appear. Wait until fall to remove any live branches, to help the tree as it goes dormant for the winter and give it a boost in the springtime.
Remove diseased or weak branches as soon as you see them; broken limbs can cause severe trauma to. Prune your sycamore for appearance in the late winter to early spring before new growth begins emerging. Sycamores grow quite quickly, often up to 36 inches per season, frequently stimulating.