October in the greenhouse

In October, some regions are already subject to frost, while in the extreme south the temperatures can remain very mild. The gardener will have to adapt to the variations according to his region and the specificities of the garden in which the greenhouse is located.

What to do in the greenhouse in October?

Water

  • As the weather is cooler and the days shorter, the majority of plants will enter a period of rest. Water only when the substrate dries to 3 cm on the surface and empty the cups to avoid suffocation of the roots by excess water. Stop adding fertilizer, except for plants that will flower during the bad season.

  • Stop all watering and fertilizer application on cacti, except cacti of tropical origin such as epiphyllums. Be careful, the latter need heat, cultivation in a cold greenhouse will only be possible with additional heating in winter.

Grez

  • In the northernmost or mountainous regions, the first frosts may have already raged. Additional heating to keep the greenhouse frost-free is essential if you are growing plants that are not very hardy. Gas, oil or electric, there are greenhouse heating solutions to maintain a frost-free temperature.

  • In southern areas, if it wasn’t already done last month, you can start removing sun protection to let in as much light as possible. This operation was of course carried out in September in all the other regions.

  • Always in the South, beware of the heat which can still be very intense in a greenhouse at midday, remember to ventilate often!

Clean up

  • October is the last time to bring in the most fragile plants. Before that, think about cleaning the greenhouse as well as possible. Wash the walls with soapy water to remove micro-algae.

  • Clean the windows on the ceiling to let in as much light as possible.

  • Clean the ground from weeds and place them in the compost.

  • Wash with bleach shelves and all containers that have been used.

Straw

  • If you leave uncultivated beds on the ground, mulch them with manure Where any other organic mulch in order to nourish the earth and boost the life of the soil.

  • Straw the foot artichokes and cut off any faded leaves.

Prvenez

  • Check under your pots and boxes that slugs do not hide there. Do the same for snails which could otherwise destroy your seedlings in a short time.

  • Examine the trunks, branches, undersides of leaves, stems of all your plants for the possible presence of pests. Deal with black soap or plant manure and try to isolate affected plants so that they do not contaminate others. You can use the foliage of tomato plants pulled up at the beginning of the month to make a purine deterrent for the majority of insect pests. Otherwise, during your walks in the forest collect fern fronds before they wither to achieve a repellent liquid manure.

Rcoltez

  • If you have saved your tomato plants, harvest the last fruits before uprooting the plants and adding them to the compost. Do the same for the eggplants, peppers, cucumbers, melons, watermelons and peppers. This will free up space in the greenhouse.

  • Harvest squash and store them in a room at room temperature and light. Unlike other vegetables, they don’t like cellar or silo storage.

  • Harvest cauliflower and head cabbages.

  • Harvest turnips and the beets.

  • Harvest carrots if you want to free a grow bed in the greenhouse.

Come back

  • The plants must be brought into the greenhouse during this period because the weather is uncertain and the cold can be brutal. Prune plants that can be (climbers, fuchsias, pelargoniums …) so that they take up less space and their structure is as airy as possible. Always check that they are not sick or infected with pests before introducing them to your greenhouse.

Transplant

  • Transplant the seedlings of biennial plants made in the previous months into individual pots. Keep the less hardy in the shelter until the following spring.

  • Transplant hardy plants sown or cuttings in late spring in the garden while the soil is still warm. They will take advantage of the autumn rains to establish themselves well and form a strong root system.

Sow

  • Sow green manure if you want to improve the quality of the soil while waiting for spring and if you do not want to grow winter crops.

  • Continue sowing winter leeks in a box.

  • Sow winter cabbages.

  • Sow winter lettuce, rocket, lamb’s lettuce and spinach.

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Source: Au Jardin, conseils en jardinage by www.aujardin.info.

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