The forsythia is blooming - time to prune

The saying goes that when the forsythia blooms, it is time to prune roses. Actually this is the time to prune many things (even before forsythia blooms). Here are a few things I always prune this time of year:

Ornamental grasses are very attractive during the winter months but before the new growth begins, it is best to cut them back all the way to the ground or you will have the old dead blades mixed with the newer ones and that is not pretty.

Set your lawnmower at its highest level and mow down liriope (monkey grass). You can also use the weedeater for this task.

Other plants to prune now (or the coming month) include:


Butterfly Bush - the entire shrub can be cut back within a foot or two from the ground.
Nandina - Cut about 1/3 of the oldest canes down to the ground. Leave the remaining canes.
Evergreen shrubs (including hollies) - prune right before new growth begins and danger of hard freezes are over.
Roses  (I'll post on this later)

(Prune only if needed!) - Summer blooming shrubs like Spirea, Rose of Sharon, PeeGee and Annabelle hydrangea (don't prune your mophead hydrangeas!)


Do NOT prune any early spring flowering shrubs or you won't have blooms this year. This includes:


Azaleas
Forsythia
Wiegela
Beautyberry
Mock Orange
Viburnums
Sweet Shrub
Gardenia
Quince 
Lilac
Kerria
Flowering Almond
Hydrangeas (Mophead (only remove dead canes or older canes. The exceptions are PeeGee and Annabelle hydranges which bloom on new wood)

Text and photos by Phillip Oliver, Dirt Therapy