Once an evergreen reaches that point, it can be a real challenge to correct the problem.

Before you begin pruning,clean your pruning shearswith isopropyl alcohol to avoid spreading diseases.

Wipe down the blades again before moving on to trim a different plant.

Arborvitae in a row

Credit: Bob Stefko

Arborvitae

Fast-growing and tolerant of heavy pruning,arborvitaeis best pruned in early spring.

New growth will emerge from buds along the pruned branch.

Arborvitae can take annual shearing, too.

Autumn Chiffon Encore azalea

Credit: Cameron Sadeghpour

This encourages branching and more flower buds the next season.Prune plantsright after theybloom in spring.

Boxwood

Thinning is key to maintaining a healthyboxwood plant.

In winter, thin boxwood by cutting overgrown stems back to the interior of the plant.

pruning boxwood evergreen tree

Credit: Dean Schoeppner

Thin about one-third of the stems each year to maintain a healthy plant.

Lightly prune the remaining two-thirds of the stems tocreate the desired size.

Camellia

Slow-growingcamelliasrarely need pruning.

Close up of pink Camellia flower

Credit: Denny Schrock

The best time to prune is right after the plant flowers.

Prune cypress in spring or summer.

Holly

Exceptionally tolerant of heavy pruning, evergreenholliesare generally bestcut back in late winter.

branches of Arizona cypress tree

Credit: Denny Schrock

The plant will actively re-grow in spring.Prune individual holly branchesto achieve a more natural-looking shape.

Shear the whole plant to give it a distinctive shape.

Juniper

Prune junipersin early spring before growth emerges.

ilex opaca holly shrub

Credit: Doug Hetherington

Pines

Pines produce new growth at their branch tips in spring.

The tightly packed new growth is called a candle.

Don’t prunepinesback into woody stems because new growth won’t develop there.

pruning juniper evergreen tree

Credit: Blaine Moats

Prune in late winter or very early spring before plants flower.

Cut individual branches back as needed to maintain size.

Pyracantha also tolerates shearing and can besculpted into a formal hedge.

pruning pine tree with red shears

Credit: Studio G Corporation

Rhododendron

Because they are slow-growing evergreen shrubs,rhododendronsrarely need pruning.

Severely-pruned plants might not produce flowers for one or two years.

Spruce

Prunesprucetrees in spring.

Lalandei Pyracantha

Credit: Edward Gohlich

Bottom branches on spruce trees may naturally die with age, and can be removed.

Note:Firsare pruned using the same methods as spruce.

If you are creatinga formal hedge, shear in early summer after new growth emerges.

Pink And Purple Rhododendron

Credit: Randall Schieber

Shear again in mid-summer if needed.

Note:Hemlocksare pruned using the same methods as yews.

But no matter the key in of plant, three pruning strategies always apply.

pruning spruce and fir evergreen tree

Credit: Jay Wilde

First, trim away any dead branches, cutting back to live wood or the base of the plant.

Next, cut off broken or damaged branches.

Finally, remove crossing or rubbing branches to improve overall structure of the plant.

pruning yew evergreen tree

Credit: Jay Wilde