When to Prune Shrubs and Trees
Auto Beauty Business Culture Dieting DIY Events Fashion Finance Food Freelancing Gardening Health Hobbies Home Internet Jobs Law Local Media Men's Health Mobile Nutrition Parenting Pets Pregnancy Products Psychology Real Estate Relationships Science Seniors Sports Technology Travel Wellness Women's Health

When to Prune Shrubs and Trees

Knowing when to prune trees and shrubs will help maintain the health and beauty of your landscaping plants.

Different trees and shrubs need pruning at different times of the year, mainly depending on when they bloom or set leaves. Poorly timed pruning, especially in the fall or early winter, can injure a plant and stunt or even eliminate its foliage and flower production. There are the three recommended pruning "seasons" for common trees and shrubs across the country. By following these guidelines you will be able to keep your plants healthy and maximize blooms. If you’re not sure what shrub you have, hold off pruning until right after the plant flowers.

It is also important to remember that some pruning that can be done anytime such as removing dead, weak, damaged, or crossing branches.

Late Winter/ Early Spring

Prune summer and fall-flowering plants, which will flower on the coming season's new growth, while they are still dormant. Their bare limbs make it easy to see the plant's structure, and the flush of spring growth will quickly heal wounds. Prune random-branching conifers once new growth is visible.

Shrubs

Abelia Beautyberry (Callicarpa species)

Boxwood

Bumald spiraea (Spiraea bumalda)

Butterfly bush (Buddleia davidii)

Gardenia (Gardenia jasminoides)

Hibiscus

Hydrangea

Ilex (Holly)

Japanese barberry (Berberis thunbergii)

Japanese spiraea (Spiraea japonica)

Nandina (Nandina domestica)

Privet (Ligistrum species)

Repeat-flowering roses (Rosa species)

Rose-of-Sharon (Hibiscus syriacus)

Summersweet (Clethra species)

Sweetshrub (Calycanthus floridus)

Trees

Chaste tree (Vitex agnus-castus)

Crape myrtle (Lagerstroemia species)

Sweet olive (Osmanthus fragrans)

Golden-rain tree (Koelreuteria paniculata)

Sweet bay (Magnolia virginiana)

Random-branching conifers

Arborvitae (Thuja species)

Cypress (Cupressus species)

Hemlock (Tsuga species)

Juniper (Juniperus species)

Southern yew (Podocarpus macrophyllus)

True cedar (Cedrus species)

Yew (Cephalotaxus and Taxus species)

Late Spring/ Early Summer

Prune spring-flowering plants immediately after their blossoms fade. Because they produce flowers only on old growth from the previous season, pruning soon after bloom will maximize flower production the next year. Pinch the candles on whorled-branching conifers when you see new growth.

Shrubs

Azalea (Rhododendron species)

Beautybush (Kolkwitzia amabilis)

Big Leaf hydrangea (Hydrangea macrophylla)

Bridal wreath spiraea (Spiraea prunifolia)

Chinese Redbud

Common lilac (Syringa vulgaris)

Deutzia (Deutzia species)

Flowering quince (Chaenomeles species)

Forsythia (Forsythia species)

Japanese kerria (Kerria japonica)

Japanese pieris (Pieris japonica)

Japanese Quince

Mock orange (Philadelphus species)

Mountain Laurel

Rhododendron (Rhododendron species)

Spiraea (early varieties)

Star magnolia

Viburnum

Weigela (Weigela florida)

Trees

Flowering almond (Prunus species)

Flowering cherry (Prunus serrulata)

Fringe tree (Chionanthus virginicus)

Ornamental pear (Pyrus calleryana)

Redbud (Cercis species)

Saucer magnolia (Magnolia soulangiana)

Serviceberry (Amelanchier species)

Star magnolia (Magnolia stellata)

Witch hazel (Hamamelis species)

Whorled-branching Conifers Fir (Abies species)

Norfolk Island Pine (Araucaria heterophylla)

Pine (Pinus species)

Spruce (Picea species)

Midsummer

There are some trees that are best pruned in midsummer which is counterintuitive to most people with any gardening knowledge. Trees with heavy spring sap flow are referred to as “bleeders” or "bleeding" trees. To minimize the stress on the trees it is best prune bleeding trees after their leaves have fully developed.

Birch (Betula species)

Dogwood (Cornus species)

Elm (Ulmus species)

Maple (Acer species)

Yellowwood (Cladrastis lutea)

Need an answer?
Get insightful answers from community-recommended
experts
in Landscaping, Lawns & Ponds on Knoji.
Would you recommend this author as an expert in Landscaping, Lawns & Ponds?
You have 0 recommendations remaining to grant today.
Comments (4)

Nice work.

Very informative article... voted, bookmarked, and appreciated. Thanks!

Dan Olsen

I disagree with pruning Birch (Betula species) in the middle of the summer -- especially the white bark birches. These should always be pruned in the dormant season when insect and disease pressure is low.

Dan, You raise a good point. However birches should not be pruned until the leaves have reached full size in late spring. Pruning earlier will make bleeding more likely. And do not prune in late summer even though the tree will not bleed, the unhealed cuts will start to bleed as soon as the sap starts to rise in the spring. Pruning while dormant will reduce insects and disease, but it will increase the chance of bleeding in the spring. In most cases birch trees do not require pruning anyway.

ARTICLE DETAILS
RELATED ARTICLES
RELATED CATEGORIES
ARTICLE KEYWORDS