Pruning in April: What to Cut, What to Leave

Spring is here, and with it comes the urge to tidy up the garden. April is a prime month for pruning, but timing is everything—cut the wrong plant at the wrong time, and you might miss out on a season’s worth of blooms. Here’s your go-to guide to help you prune with confidence and know when not to reach for the clippers.

🌿 Start with the “Can-Dos”: What to Prune Now

1. Shrub Roses (like Knock Out or Drift):
Early spring is the perfect time to shape them. Cut them back by one-third to one-half, removing dead, weak, or crossing branches. This encourages vigorous growth and a flush of blooms by early summer.

2. Panicle Hydrangeas (Hydrangea paniculata):
These bloom on new wood, so April is a safe time to prune. Cut them back by ⅓ to control size and promote more prolific flowering later in the season.

3. Smooth Hydrangeas (Hydrangea arborescens):
Like panicle hydrangeas, they flower on new growth. Prune them hard—down to 12-18″ if needed. Popular varieties like ‘Annabelle’ respond well to a good cutback.

4. Summer-Blooming Spirea:
Trim back to just above the lowest pair of healthy buds. These tough shrubs rebound quickly and bloom beautifully on new wood.

5. Butterfly Bush (Buddleia):
Give it a hard prune, cutting stems down to 12–24″ above the ground. This keeps it neat and encourages abundant flowering.

🛑 Hold Off on These: What Not to Prune Yet

1. Bigleaf and Oakleaf Hydrangeas (Hydrangea macrophylla & quercifolia):
These bloom on old wood (last year’s growth), so pruning now may remove flower buds. Only prune out dead wood or broken stems at this time.

2. Spring-Flowering Shrubs (like Forsythia, Lilac, Weigela):
Wait until after they bloom. These early bloomers set their flower buds last summer, so pruning now = no flowers. Enjoy the show, then shape as needed.

3. Azaleas and Rhododendrons:
Same rule as above—prune after flowering. Early spring pruning can result in a bloomless spring.

✂️ General Pruning Tips for April

• Sharpen Your Tools: Clean, sharp pruners make cleaner cuts and reduce risk of disease.

• Look for the 3 D’s: Start by removing anything Dead, Damaged, or Diseased.

• Prune on a Dry Day: Helps prevent the spread of disease through open cuts.

🌸 Shape Your Garden for a Gorgeous Season

With just a few smart snips, you can shape up your landscape and set the stage for healthy growth and vibrant blooms. Remember: the best pruning encourages—not discourages—flowering and structure. If you’re ever unsure, a little research or advice from your local garden center can go a long way.