Pruning guide

Pruning Portuguese Laurel

When and howPrunus lusitanica

Prune your portuguese Laurel in June and September — the optimal month is usually September.

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The next pruning window is June.

Portuguese Laurel (Prunus lusitanica)
Foto: Sten Porse / Wikimedia Commons / CC BY-SA 3.0

When to prune?

The shrub portuguese Laurel is pruned in June and September.

Pruning time depends on when the shrub flowers.

The rule of thumb for ornamental shrubs: spring-flowering shrubs (forsythia, lilac, flowering currant) are pruned immediately after flowering, because they set their buds on last year's wood. Summer-flowering shrubs (buddleia, paniculata hydrangea, hardy hibiscus) are pruned in March, because they flower on wood produced this season. Get the timing wrong and you cut off this year's buds. Evergreen shrubs (yew, box) are best pruned around Midsummer (24 June): the first flush of growth is finished and the plant still has time to seal the wounds before winter.

How to prune portuguese Laurel

Portuguese laurel is naturally dense and responds very well to pruning, making it ideal for formal hedges and topiary. The main pruning window is June, after the spring flush of growth has hardened off, and again in September if needed to tidy up or maintain shape. Avoid pruning during frosty weather or in late autumn, as new soft growth won't harden before winter. For hedges, use sharp hedge shears or a hedge trimmer to cut back new growth by about half, maintaining a slightly tapered profile (narrower at the top) to ensure light reaches the lower branches. This encourages dense, even growth from top to bottom. If you're shaping a specimen shrub or topiary, prune to the desired outline, cutting just above a leaf node to encourage branching. Portuguese laurel tolerates hard renovation pruning if an old hedge has become leggy or overgrown. In late March or early April, you can cut back into older wood—even quite severely—and it will usually regenerate from dormant buds. Spread hard renovation over two or three years if you're nervous: tackle one side or section at a time. Remove any dead, damaged, or diseased branches whenever you spot them. Also cut out any plain green shoots that appear on variegated cultivars. Use clean, sharp secateurs for individual stems and loppers for thicker branches. Portuguese laurel doesn't require pruning to flower, but regular trimming will reduce or remove the small white flower clusters that appear in spring and early summer.

Common mistakes

Hard-pruning all hydrangeas in early spring

Mophead hydrangea (Hydrangea macrophylla) flowers on old wood — cut it back in March and you get no flowers. Paniculata flowers on new wood and can be cut back hard. Check the species first.

Trimming everything to the same length

Looks 'chopped' and weakens the shrub. Instead, remove one in three of the oldest stems each year right down to the base (renewal pruning). This keeps the shrub vigorous and natural in shape.

Pruning in summer heat

Fresh cuts dry out quickly in full sun and become an entry point for fungal disease. Wait for an overcast day or postpone until autumn.

Hold off on pruning

Better to wait than prune at the wrong moment. The next optimal window is June. Until then: leave the plant alone — only remove dead or diseased wood (which you can do year-round).

Also prune in June and September

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