When to prune on the Costa del Sol: a month-by-month calendar

If you search “when to prune” and follow the first thing that comes up, the odds are you’re following a calendar made for Madrid, Galicia or northern Europe. Those dates don’t work here, and it isn’t a fussy gardener’s quibble: pruning in the wrong month on the Costa del Sol is paid for with scorched wood, shoots that don’t make it to winter, or a palm with red palm weevil.

The reason is simple. A pruning calendar isn’t organised by month, it’s organised by what the plant is doing. And on this coast the plant is doing something else: it almost never freezes, summer bites from June until well into September, and the winter rest is short and shallow.

The rule that settles almost every case

Before the calendar, the idea underneath it: you prune when the plant is resting, not when it suits you. With the plant dormant, the cut doesn’t wear it down and it heals before the plant starts to shoot. With the plant in full swing, every cut is an open wound that also forces it to spend reserves rebuilding what you’ve taken off.

That gives the two seasons that matter here: winter for formative and hard pruning, and after flowering for maintenance pruning. The rest are exceptions, and the exceptions are what’s explained below.

Month by month

December, January and February — the good season

This is when the serious work gets done. Deciduous trees, formative pruning, hedges that have outgrown their size, crown reduction. The plant is resting, the cut doesn’t wear it down, and you have the whole spring ahead for it to regrow strongly.

Palms, right now and not in summer. It’s the most important exception on this coast. The red palm weevil finds fresh cuts by their smell, and in the warm months a freshly pruned palm is a lure. In the cold the insect is far less active and the risk drops a lot.

Citrus trees are a separate case: wait until you’ve picked the fruit. Right by the sea it barely freezes, but inland the odd January night gets close to zero, and a recent pruning cut is where the damage gets in.

March, April and May — the window closes

March still works for whatever you didn’t get round to in winter, but from April you’re already late for hard pruning: the plant has got going and every cut costs it twice as much.

What is due now is the post-flowering prune. The rule is easy to remember: shrubs that flower in spring are pruned just after they flower, not before. If you prune them in winter you take the flower buds off with everything else, and then wonder why it hasn’t flowered.

And for olives, this is the classic window: after the harvest and before flowering begins.

June, July, August and September — put the shears away

The most useful thing anyone can say about these four months is don’t prune.

Opening up a hedge or a tree at thirty degrees leaves the wood exposed, and the plant burns exactly where you’ve just opened it. It also regrows weakly, with soft shoots that reach the autumn without hardening off. The only reasonable exceptions are a branch that’s genuinely in the way, a dead branch, or one that threatens to come down.

If the hedge has lost its shape and you can’t bear to look at it, a light trim of the tips is fine. A trim, not a cut back.

October and November — planting, not cutting

Autumn here is for planting, not pruning. The soil is still warm from the summer and the air no longer punishes, so whatever you plant now roots all through the winter and reaches the next summer with its root system in place.

As for pruning, at most a tidy-up: dead wood, crossing branches and water shoots. No cutting back: a hard prune in autumn triggers new growth that the cold will catch halfway.

Three mistakes we see every season

Pruning the palm in summer because “it looks scruffy”

It’s the most expensive of the three, because it can end with a dead palm. If it can hold out until December, it can wait.

“Cutting back” the hedges in August before the visitors arrive

August is the worst possible month to open up a hedge. If it has to look presentable, trim the tips and leave it there; the real cut back is for winter.

Copying the northern calendar for fruit trees

Many fruit trees need a number of chill hours that just isn’t reached here on the coast. It isn’t that you’re pruning them badly; sometimes the species wasn’t right for this spot in the first place. Before persisting with the pruning, it’s worth checking whether the tree suits the climate.

And if the question is about your own garden

This calendar covers the general picture, but altitude shifts the dates within the same municipality. In Mijas Pueblo or Benalmádena Pueblo pruning comes later than on the coast, because up there the nights are noticeably colder and the plant keeps a different rhythm.

If you want the detail of how that affects your area, we cover it in gardeners in Mijas and in gardeners in Benalmádena.