Autumn is coming, along with the tree leaves changing color, the days becoming shorter and the temperature growing colder. In the greenhouse, things are changing too: the vegetables grow slower and the yield is no longer as abundant as during the hot summer months. Don’t worry, even off-peak season there is plenty to do. We will explain how to prepare your greenhouse for the upcoming autumn.


Small but beautiful. The autumn harvest also deserves your attention.
After all, those who sow cleverly can still reap the fruits of their hard spring work.
And literally! Just think of basil, peppers and peppers. They are still doing fine in September.

And with a bit of luck, a tomato or aubergine might still pop up.


October starts. The temperature drops and you can expect the first night frost. The subtropical plants in your greenhouse are not keen on freezing and do not ripen anymore. So your cultivation process comes to a standstill for a while.

The perfect time to clean your greenhouse! First of all, get rid of the annual plants so that you can start with a clean slate in spring.

Speaking of clean, how do your windows look at the time? A little dirty? Leaves and particles of dirt can stick to your windows. Moreover, algae feel at home in a warm and humid greenhouse climate.

All this dirt prevents the natural incidence of light from coming through, light which is less strong in the autumn anyway.

An annual cleaning of your greenhouse is therefore a necessity.

You do not need any soap. Just use a bucket of water with a dash of vinegar to wet the glass. Once the water has absorbed the dirt, you can easily rub it off with a soft brush. Wipe away the drops of water with a squeegee and you’re done!

TIP: Now you are standing on the ladder, take your time to wipe your drains and condensation drains as well.


Planning on moving your frost-sensitive pot plants to your greenhouse during the winter months? Great idea. A temperature between 1 and 5 °C is ideal for your green hibernators.

Are you expecting any night frost? Bubblewraping your greenhouse can make a difference of a few degrees. Will it get real chilly? Try keeping your plants warm with an electric heater or a gas heater. This allows you to let them hibernate in peace ?.

TIP: The cylinders of your automatic window openers don’t like the cold either. Take them inside as soon as freezing temperatures start to reign in your greenhouse.


Phew, now your greenhouse is clean and well insulated. Need a little rest? Your greenhouse doesn’t! It is already ready for new staffing. The falling temperature is no reason to leave your greenhouse soil lying fallow. On the contrary.

Those who like to finish off their pasta with some crunchy rocket leaves from their own garden or enjoy a winter salad can restart in October with strong autumn plants. This includes crops such as winter purslane, endives, lamb’s lettuce or winter spinach.

Not a fan of leafy vegetables? Boost your soil with green manure. After all, mulching with organic material creates an natural fertilizer. Soil fertilisers such as buckwheat, rye, grasses or yellow mustard protect your soil from the caprices of Mother Nature and retain useful nutrients.


You can sow them up to September and dig them in in January.


Plants need water all year round. Yet most people systematically give too little water, especially in winter. So it is important to carry your watering around in the autumn as well. The rule of thumb for the period from September to October is two watering cans per square metre per week. Forgetful? Fortunately, most Euroserre models are equipped with a sprinkler system. This keeps your plants healthy.

You are ready for it!

So, now you know:

  • What to harvest and sow in the autumn;
  • How to protect your soil;
  • How to keep your greenhouse in top condition.

Euroserre wishes you good luck with the tips and lots of gardening fun in the autumn!