Gardening in the Pyrénées-Orientales: September

We don’t claim to be gardening experts. This article has been put together from internet research and advice from friends. Anything to add from your gardening experiences in the P-O? We’d love to hear from you.

September can be a strange month for gardeners in the Pyrénées-Orientales.

In northern Europe, September usually means cooler mornings, damp lawns, falling leaves and the first thoughts of autumn. Here in the P-O, it can feel very different. The summer may officially be drawing to a close, but the heat certainly hasn’t always received the message.

After months of drought, intense sunshine, dry soils and water restrictions, many gardens are looking decidedly tired. Lawns have turned brown, some plants have given up altogether and even established shrubs and trees can show signs of stress.

So what should we be doing in the garden now?

The answer is not necessarily to start watering everything again.

In the Pyrénées-Orientales, we are having to rethink what a successful garden looks like.

September is not the end of summer here

September can bring some relief from the worst of the summer heat, particularly towards the end of the month, but hot spells can still be intense.

This year is a good reminder. Temperatures are still reaching levels that would be exceptional for September in many parts of France, with around 35°C possible in the Perpignan area during the current heat episode.

And after several years of drought and repeated periods of water restriction, our gardens are starting to tell the story.

The old idea of keeping everything perfectly green throughout the summer is becoming increasingly unrealistic.

A brown lawn isn’t necessarily a dead lawn, a tired-looking shrub isn’t necessarily a plant that needs rescuing, and a garden full of dry leaves and faded flowers isn’t necessarily a failed garden.

Sometimes, the sensible thing to do is simply to let the garden rest.

Water restrictions: check before you water

Water restrictions have become a regular part of life in the Pyrénées-Orientales.

The department has experienced repeated drought restrictions in recent years, and measures have continued into 2026. The rules can change during the season according to the state of rivers, groundwater and local water resources.

Crucially, the rules are not necessarily identical everywhere.

Different communes can be placed under different levels of restriction, and the rules can also differ according to what you are watering and where the water comes from.

So before turning on the hose, check the current regulations for your address.

The official government website recommends using VigiEau to find the restrictions applicable to your particular location.

It is particularly important not to assume that because you have a canal, a well, a rainwater tank or another source of water, you can automatically use it however you wish. Local regulations and restrictions may still apply.

In other words, check first, water second.

Don’t try to save the lawn at all costs

This may be one of the hardest things for newcomers to the region to accept.

The traditional image of a beautiful garden is a lush green lawn.

But a green lawn in the Mediterranean summer can require a considerable amount of water, and maintaining it through increasingly hot and dry periods may simply not make sense.

If your lawn has turned brown, don’t panic.

Many grasses naturally go dormant during periods of heat and drought. With cooler weather and autumn rain, some may recover.

September is therefore a good time to assess your lawn rather than immediately reaching for the hose.

Ask yourself:

Do I really need all this lawn?

Could part of it become a gravel garden, a planted area, a shaded sitting space or a Mediterranean-style border?

Could you simply allow some areas to grow longer and become more natural?

A smaller lawn that survives without constant irrigation is often much more practical than a large expanse of green that needs rescuing every summer.

Give tired plants a chance

After a long, hot summer, it is tempting to remove anything that looks dead.

Wait.

Before digging up a struggling plant, scratch the bark gently with a fingernail or secateurs. If there is green tissue underneath, there may still be life in it.

Some plants will recover remarkably well once temperatures fall.

Remove genuinely dead branches, but don’t necessarily give up on a plant simply because its leaves have turned brown.

September can be a time of recovery rather than replacement.

That said, if a plant has repeatedly struggled through several summers despite sensible care, perhaps it is telling you something.

The next replacement might be better chosen for the conditions.

Choose plants for the climate

One of the most important changes in Mediterranean gardening is to stop asking:

“How can I keep this plant alive?”

and start asking:

“Which plants actually want to live here?”

When replacing plants, look for species that are naturally suited to hot, dry conditions.

Mediterranean and drought-tolerant plants can include lavender, rosemary, thyme, santolina, cistus, teucrium, myrtle, pittosporum and many varieties of sage.

There are also numerous drought-tolerant trees and shrubs that can provide shade, structure and colour without needing the same amount of water as more demanding species.

Local nurseries are an excellent source of advice because they know what survives in the particular conditions of the region.

And remember that the Pyrénées-Orientales isn’t one uniform climate. A garden in the coastal plain is not the same as one in the Vallespir, Conflent or higher inland areas.

Mulch is your friend

If you do only one thing in September, consider adding mulch.

A good layer of organic mulch around plants helps protect the soil from the fierce Mediterranean sun, reduces evaporation, suppresses weeds and can improve the soil as it breaks down.

Use compost, shredded plant material, bark or other suitable organic mulch.

Leave a little space around the base of trunks and stems rather than piling mulch directly against them.

Mulching is one of the simplest ways of making the water you do use go further.

September can be a good planting month

This may sound surprising when the weather is still hot, but the approach of autumn makes September an important month for planning new planting.

The best time to establish many plants is when the worst of the summer heat has passed but the soil is still warm.

However, don’t confuse a calendar date with a weather condition. If we are experiencing another 35°C heatwave, it is not the moment to plant a large number of new shrubs and expect them to thrive without irrigation.

Wait for cooler conditions where necessary. Once temperatures become more reasonable, autumn planting gives roots an opportunity to establish before next summer.

And when you do plant, choose carefully.

A Mediterranean plant planted in the right place, with good soil preparation and a layer of mulch, has a much better chance of surviving its first summer.

Think about trees for the future

If you have space, September is also a good month to think about trees, not just because they look attractive, but because shade is going to become increasingly valuable.

A well-positioned tree can eventually provide shade for people, buildings and other plants, reducing the amount of heat reaching the ground, but remember that a newly planted tree still needs help to establish.

The aim is not to plant a tree and abandon it. It is to give it the right start, water it appropriately when regulations and conditions allow, protect the soil around its roots and gradually encourage a strong, deep root system.

The tree you plant this autumn could be providing welcome shade for decades.

Pots and terraces need special attention

Plants in pots are particularly vulnerable to heat. A container can become extremely hot in direct Mediterranean sunshine, and the limited volume of soil means roots have less protection from drying out.

Move vulnerable pots into a more sheltered position where possible. Group containers together and use larger pots where appropriate, as they generally dry out less quickly than very small containers.

Mulching the surface of pots can also reduce evaporation.

But again, check the current water restrictions before watering. Restrictions can apply to potted plants as well as gardens, and the permitted use of water can depend on the current alert level and source of the water.

What about the vegetable garden?

September is still a productive month for the vegetable garden.

Continue harvesting tomatoes, peppers, aubergines, courgettes and other summer crops while they are producing.

Remove plants that have genuinely finished, but don’t clear everything simply because summer is ending.

As temperatures begin to moderate, you can start thinking about autumn and winter crops.

Leafy vegetables, salads, spinach, chard, radishes, turnips and some brassicas can all have a place in the autumn garden, depending on your microclimate.

The key word, however, is timing.

Don’t plant large quantities of thirsty young seedlings during a heatwave simply because the calendar says September.

Let the weather guide you.

Start collecting seeds

September is also a wonderful month for collecting seeds from plants that have performed well.

If a plant has survived the summer with little water and still looks healthy, make a note of it.

Those are the plants you want more of.

Collect seeds where appropriate, label them carefully and keep them somewhere cool and dry.

Over time, you can develop your own collection of plants that have demonstrated that they can cope with your particular garden.

This is perhaps the most useful gardening experiment of all.

Your garden will teach you what works.

Think about fire as well as water

Gardening in the Pyrénées-Orientales increasingly means thinking about wildfire as well as drought.

The department has experienced serious vegetation fires, and the authorities continue to warn about the danger of vegetation drying out and flames spreading rapidly.

Garden maintenance therefore isn’t simply about keeping plants alive.

It is also about managing combustible vegetation responsibly, particularly around buildings and at the interface between gardens and natural areas.

And never burn garden waste.

The burning of vegetation is prohibited during the specified seasonal period in the Pyrénées-Orientales, and the authorities have warned that vegetation burning remains a significant cause of fires.

If you have garden waste, use the appropriate collection, recycling or composting arrangements instead.

Don’t fight the Mediterranean climate

Perhaps the biggest lesson for gardeners in the Pyrénées-Orientales is this:

Don’t fight the climate. Work with it.

We have extraordinary advantages here. Long summers. Mild winters. Sunshine and a huge range of plants that thrive in Mediterranean conditions.

And the opportunity to create gardens that are beautiful without being permanently dependent on irrigation.

That doesn’t mean abandoning colour or giving up on gardening. Quite the opposite. It means becoming more selective.

Plant fewer things, but choose them better. Create shade. Improve the soil. Mulch. Collect rainwater where permitted and practical. Reduce unnecessary lawn. Protect established trees.

And accept that a Mediterranean garden is not supposed to look like an English garden in August.

The September gardening checklist

This month, think about:

• Checking the current water restrictions for your commune.
• Avoiding unnecessary watering during periods of extreme heat.
• Leaving dormant lawns alone rather than trying to force them green.
• Removing genuinely dead material while giving stressed plants time to recover.
• Mulching borders and around established plants.
• Planning autumn planting.
• Choosing drought-tolerant Mediterranean plants.
• Collecting seeds from plants that have coped particularly well.
• Harvesting the last of the summer vegetables.
• Planning autumn and winter vegetable crops.
• Moving vulnerable pots away from the hottest positions.
• Thinking about future shade and planting trees where appropriate.
• Clearing excessive dry vegetation around buildings.
• Never burning garden waste.
• And, above all, watching the weather rather than simply following the calendar.

Looking ahead to October

If September gives us cooler nights and some useful rain, October can become one of the most rewarding gardening months in the Pyrénées-Orientales.

The soil may finally become easier to work, planting conditions improve and we can begin preparing the garden for winter.

But for now, don’t be in too much of a hurry.

After another long, hot summer, your garden may simply need a little time to breathe.

And perhaps the most important thing we can learn from gardening in the Pyrénées-Orientales is that a beautiful garden doesn’t have to be a thirsty one.