Smart Summer Pruning and Deadheading

Removing the old, spent flowers from perennials, like this coneflower, will keep the plants flowering and looking great for longer. (photo by Jessie Keith)

Summer is not the time of year when most gardeners prune, but there are some definite advantages to summer pruning. It is easier to identify damaged or ill branches when a tree is in full leaf. When a tree is in full leaf it is also easier to identify branches that can be removed to provide better air circulation. A reminder: if you are going to do summer pruning on fruit trees, do it after the fruit has set.

Summer Pruning

Deadheading modern rose varieties will encourage new roses to appear. (photo by Jessie Keith)

For those gardeners that have espaliered fruit trees, constant summer pruning is a necessity. With the tree sending out new branches, it is important not to let these grow too long but to keep them trimmed so the tree is kept properly trained and maintained. For gardeners that would like to be able to grow their own fruit trees, but have limited space, growing espaliered trees is an excellent option to consider.

There is confusion among gardeners as to when and how to prune hydrangeas. Some hydrangeas bloom on 2nd-year wood, so if a plant is severely pruned one season, it may take a full year for it to come into bloom again. There are other Hydrangeas, ‘Limelight’ is a good example, that bloom on new growth. This means it can be pruned at almost any time and still produce flowers. Check with your local garden center to learn the best time to prune your hydrangeas and still get flowers.

Check with gardening neighbors and garden experts to get additional tips on pruning. Find a neighbor that likes to garden and soak up some information. One of the best things about gardening is that most gardeners are very friendly, helpful, and like to share information.

growth buds that reside on either side of it.


When removing the summer seed heads from Rhododendron, be sure not to remove the new

“Deadheading” means is removing the old flower stems to make way for new. The word is used frequently with regard to rhododendrons and azaleas and refers to snapping or cutting off the area where the old flower was attached to the stem. With most rhododendrons and azaleas, this area is usually very visible which makes removal easy. Often, this is done for visual purposes because dried up flowers are not very attractive. Removing the flowers is also a way to prevent the plant from forming seed. When a plant forms seeds, it takes away nourishment that could be used for new growth. Be careful when removing the seed head because new growth buds reside on either side of it and should not be removed. These new buds will produce the new growth for the summer and this growth will then develop flower buds for next years’ bloom.DRoses are another plant that responds well to having the flower stems removed after the flowers are gone. This will encourage the plant to produce new stems and new flowers. Stem removal can also be seen as a way to perform some selective summer pruning and will help ‘open’ the bush up to allow for good air circulation. Just be sure to sanitize your pruners between plants to protect against any potential spread of disease.

Winter is not pruning season for all plants, even though most gardeners traditionally prune in the cold season. Sometimes what is traditional, is simply that, ‘traditional’ and may have no actual factual basis.

For espaliered fruit trees, constant summer pruning is a necessity. (Image by Jessie Keith)

About Mike Darcy

Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening.

Leave a Reply

Content Disclaimer:

This site may contain content (including images and articles) as well as advice, opinions and statements presented by third parties. Sun Gro does not review these materials for accuracy or reliability and does not endorse the advice, opinions, or statements that may be contained in them. Sun Gro also does not review the materials to determine if they infringe the copyright or other rights of others. These materials are available only for informational purposes and are presented “as is” without warranty of any kind, express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement. Reliance upon any such opinion, advice, statement or other information is at your own risk. In no event shall Sun Gro Horticulture Distribution, Inc. or any of its affiliates be liable to you for any inaccuracy, error, omission, fact, infringement and the like, resulting from your use of these materials, regardless of cause, or for any damages resulting there from.