pruning is pruning.. there would not be different rules for a dwarf .. there should be lots of info online about such ...

the usual default.. is to trim after you enjoy the flowers ...

or before if you simply cant stand it anymore.. lol ..

some pix would sure get you better .. more specific info

ken

Yes, I wish I would have pruned them last summer after they flowered. I did read an article that stated pruning a dwarf myrtle was much different than pruning a myrtle tree. Even described to what point on the branches to trim them back (back to the branches that are pencil sized). But it said to trim in winter. So I am just concerned I won't have any flowers this summer if I trim them. I guess I will just see what happens.

All crapes bloom on new wood, so I wouldn't think it would be much a problem to prune them now. The dwarfs do tend to bloom late though, and likely your blooming would be delayed a bit more from pruning. But if you need to prune it, you need to prune it.

Are they leafing out yet?

Ditto to what dave just said. They don't start forming their flower buds until much after the foliage has grown out. I would also prune now to the shape you want them.

Prune the dwarf in early spring Pruning in winter would subject the tree to diseases while dormant Trim the tree to an odd number of main trunks by trimming to ground level the unwanted trunks Then thin the top of the tree for airflow and appearance Use a granular slow release fertilizer in early spring and mid-summer You should see an increase in growth and blooms that spring Deep water once a week during growth season Do not water if soil is moist or during winter The dwarf crepe myrtle is a beautiful plant and will bring you pleasure for many years if properly cared for!