The short answer, it depends! It seems there are different guidelines for almost every type of tree and shrub. Below is what I gleaned from researching varying sources.
There are a few things to keep in mind. In general, avoid pruning in late summer or fall. Pruning can encourage a plant to grow. But during that time of the year you want the tree or shrub to be slowing down and preparing for winter dormancy.
Do not prune to control size. A tree or shrub that is too big for its space will be an annoyance and battle for years. Be sure when choosing shrubs and trees for your landscape that the estimated final size will fit your needs. Not the size it is when you first plant it.
Remember, the guidelines in the table above are general!
Read more at: When to prune hydrangeas: https://macon.ces.ncsu.edu/2017/04/pruning-hydrangeas/; When to prune shade trees: https://extension2.missouri.edu/g6866.
Are you thinking about adding blueberries to your farm? Join Berea College, the Madison County Cooperative Extension Service, the University of Kentucky Horticulture Department, and the Kentucky Horticulture Council for this workshop that will help you consider key aspects of this decision as well as hands on activities such as planting and pruning.
The material presented during this workshop is geared towards commercial production. Some background in gardening or farming will be very helpful.
This workshop will be held on Monday, Feb. 17, from 1 to 4 p.m., at Berea College's Horticulture Farm on Scaffold Cane Road in Berea. Please register if you plan to attend. Registration is through the Kentucky Horticulture Council at: https://2020bereablueberrywokshop.eventbrite.com
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