The spring trim gets all the attention. But the second trim of the year — the summer cut — is just as important for how your hedge looks by September, and just as easy to get wrong. Every year across Nanaimo and Lantzville, homeowners either skip it entirely, cut too early before the new growth is ready, or cut in mid-August heat and wonder why their cedar looks scorched.
The second trim isn't identical to the spring cut. Growth patterns are different, nesting birds change the rules, and the species-specific windows for cedar and cherry laurel diverge further in summer than they do in spring. Here's how to get it right — and how to plan for the cleanup you'll almost certainly underestimate.
Step 1: Identify Your Species and What It Needs
The two most common hedges in Nanaimo and Parksville are western red cedar and cherry laurel, and they behave very differently once summer growth kicks in. Cedar is a slow, measured grower — it might add 15cm in a full growing season. Cherry laurel can put on 20–30cm of new growth in a single good month. That gap means they need different timing windows, different cut depths, and different post-trim care.
If you have boxwood, Portuguese laurel, or English laurel, the same principle applies: each has its own optimal summer trim window. Boxwood, for example, does best trimmed in July after its June growth flush settles. English laurel behaves similarly to cherry laurel but with slightly less vigour. If you're not certain which species you have, take a photo of the leaves and check with a local nursery — getting the species right is the foundation of everything else.
Step 2: Check the New Growth Before You Commit to a Date
Six to eight weeks after your spring trim, inspect the hedge closely. For cedar, you're looking for 5–10cm of soft new green growth at the branch tips. That new growth should feel slightly flexible — not as tender as it was in April, but not yet as firm as established wood. This is your signal that the hedge is ready for a summer cut without stressing the plant.
Cherry laurel grows so quickly that it may be ready for a second trim just four to six weeks after the spring cut. If you see shoots extending 15cm or more beyond the hedge face, it's ready regardless of the calendar date.
If you trimmed late in May — which is common when spring runs busy — don't go by the calendar alone. Add 6–8 weeks from your actual trim date to find your summer window, then confirm by checking growth extension in person.
Step 3: Pick the Right Timing Window for Your Species
Here are the practical windows that work on Vancouver Island:
- Western red cedar: Late June to mid-July is the ideal window. The new growth has had time to harden slightly, which means cut tips heal faster and brown less. Trimming cedar too early in June while growth is still very tender often causes dieback at the tips that looks worse than not trimming at all.
- Cherry and English laurel: Mid-June through mid-August — significantly more flexible. Laurel heals quickly and tolerates a wider range of conditions. If you miss the June window, a July or early August cut is still fine.
- Boxwood: July, after the flush of June growth consolidates. Boxwood trimmed in late June often looks ragged because it's still producing new shoots that get clipped a week later.
One firm rule across all species: avoid trimming during heat waves. Cuts made when temperatures are above 28°C are slow to callus, and the exposed plant tissue is more vulnerable to stress browning. If the forecast shows a warm week ahead, wait until it breaks. A week's delay doesn't significantly change your results; trimming at the wrong temperature does.
Nesting season on Vancouver Island runs April through August. Before starting any hedge trim, walk the full length of the hedge and look for active nests inside the canopy. Sparrows, robins, and finches commonly nest in both cedar and laurel hedges. Disturbing an active nest is prohibited under the Migratory Birds Convention Act. If you find one with eggs or young, mark the spot and wait 2–3 weeks for the young to fledge before trimming that section.
Step 4: Make the Cuts
For a summer maintenance trim, you're removing the current season's new growth — not reshaping the hedge or reducing its overall size. This keeps the hedge at its established volume while encouraging the dense, layered growth that makes hedges look full and formal rather than loose and woody.
Maintain the slight bevel that good hedges have — slightly narrower at the top than the base. This isn't just aesthetics. A hedge that's wider at the top shades its own lower branches, which then thin out and die back over a few years. The bevel keeps light reaching the sides all the way to the bottom.
The cardinal rule for western red cedar is the same in summer as in spring: never cut into bare brown wood. Cedar has no dormant buds in its brown inner wood — if you cut back past the green, that section will not recover. Always trim only into the green growth, even if this means the hedge face doesn't come back as far as you'd like.
For tall hedges — anything over about two metres — extended-reach equipment is essential. At WCL we use commercial-grade extended-reach hedge trimmers that let us work from ground level on hedges up to five or six metres. This keeps the cut line even and the operator safe. Ladders on sloped ground next to a hedge are where hedge trimming jobs go wrong fast.
Step 5: Plan the Debris Haul (This Is the Part People Don't See Coming)
Here's the thing nobody talks about in hedge trimming articles: what happens after the cutting stops. A mature 20-metre cedar hedge in Nanaimo typically produces 100–150kg of trimmings from a summer cut. A cherry laurel hedge of similar length can produce more, because laurel is denser and faster-growing. All of that needs to go somewhere.
Bagging it for curb side pickup works for small hedges, but once you're dealing with more than a few garbage bags, you're looking at multiple trips to a green waste facility or a request for a large bin pickup. The cutting itself might take two hours. The cleanup and haul-away easily takes as long again — sometimes longer.
This is the hidden cost of DIY hedge work that most homeowners don't factor in until they're surrounded by several hundred kilograms of trimmings in their driveway. When WCL trims a hedge in Lantzville or Parksville, every trimmings load is hauled away to a composting facility as part of the job. The yard looks finished when we leave — not like the beginning of a debris-sorting project.
Step 6: Water the Root Zone and Monitor Recovery
After trimming, water the base of the hedge deeply if the forecast calls for dry, warm weather. The hedge has just lost a significant portion of its leaf surface area and is temporarily more stressed than usual. A thorough root-zone watering the day after trimming helps it recover faster and reduces stress browning at the cut tips.
Some browning at freshly cut cedar tips is completely normal and temporary — it's the cut wood drying out and callusing, not the plant dying. If you trimmed correctly (into green growth, not brown), it should green up with new growth over the following weeks.
If you see widespread browning that persists beyond three or four weeks after trimming, that's worth investigating. Cypress tip moth, spider mites, or a root moisture issue can all cause post-trim browning that doesn't recover on its own. Address it early rather than waiting through summer to see if it clears up.