Gardening

September in the garden, our advice


We are heading towards the end of summer and September is one of the most important months for your garden.

Lawns, vegetable gardens, flowers, trees and shrubs require special attention.

The summer heat is behind us and the vegetation will finally be able to breathe. The shrubs find a new period of growth, the vegetable garden offers magnificent vegetables while most of the fruits are still to be picked.

The flowers, fewer in number, are often of very good quality, while the autumn plants are gradually emerging.

For each theme, check out our gardening tips for this September.

  • To discover: September lunar calendar for gardening with the moon

Lawn in September

  • In September, it is important to scarify old lawns to restore vigor.
    It will also allow you to control weeds and eliminate moss that has accumulated since the spring.
    The summer period also sees the grass turn yellow more often and form a mat of dried grass that must be removed at the risk of preventing the water from flowing normally into the soil.

  • It is also a good time to plant a new lawn.
    If you want to redo or create a new lawn, September is the right time.

Bring a special lawn fertilizer (organic is now very effective!) to accelerate the vegetative process and to advantageously green your lawn.

  • Mow regularly (ideally every 3 days)
    But in September it can still be very hot, in which case leave your lawn to green up between mowing.

Vegetable garden in September

  • Harvesting of summer vegetables continues (tomatoes, zucchini, cucumbers, eggplants) while harvesting of fall vegetables (pumpkins, cabbage, lettuce, arugula) begins
  • Continue to water without wetting the foliage and do this at the end of the day because the nights can be cool.
  • Remove the leaves from the tomatoes starting at the base, especially those that shade the tomatoes.
    This gesture allows your tomatoes to ripen and continue to make them fat.
  • Tear off the potatoes as they ripen and store them in a cool, ventilated and rather dark place.
    The absence of light will allow better preservation of your potatoes.
  • In September, start sowing winter vegetables: onions, sorrels, spinach, turnips, radishes, leeks and endives.
  • To discover: September lunar calendar to garden with the moon

Fruit trees in September

  • Harvest the apples and pears, grapes and plums.
    The fruits should come off easily.
    Regarding the pear harvest, do not wait for the fruit to fall to pick it up because the pears are picked directly from the pear tree.
  • Plant the strawberries.
  • Prune blackcurrants and currants in September
    - First ventilate the center of the shrub because the light entering it is decisive.
    - Remove any tangled branches.
    - Balance the rest of the tree to give it a nice goblet shape.

Flowers in September

Trim back perennials that are no longer blooming.

Plant perennials that will flower next year, spacing them enough for their proper development.

Remove wilted flowers from annual plants that continue to bloom.

Now is the time to cut certain plants: roses, hydrangeas, geraniums, anthemis, fuchsia, impatiens, lantana or even geraniums and pelargonium.

  • Collect seeds from hollyhocks, carnations, nasturtiums, marigolds, dahlias, gaillards, cleomes, lupines, ornamental tobacco, crocosmias, lychnis.
    Dry them and store them in an opaque jar to replant them next spring.

  • Bring somerose fertilizer

  • Transplant the biennials sown in August by placing them directly in place.

  • Stop watering heather soil plants to promote the next bloom.

Trees and shrubs in September

  • Add a special heather plant fertilizer to your rhododendrons and azaleas.

  • Trim the hedges before the onset of winter and the first frost.

  • Start thinking about your plantings.
    Here are ideas for a flowering or evergreen hedge.

Roses in September

  • Bring special rose fertilizer.

  • Here are all the diseases, parasites and treatments of the rose bush

Terraces and balconies in September

  • Continue to water your plants regularly and bring a fertilizer for your perennials.

  • Remove the annuals, taking care to remove the soil because you will be able to plant autumn-flowering flowers such as chrysanthemums..

  • You can start planting the spring bulbs.

You are finally ready to welcome fall! This season presents a fabulous variety of colors and moods that will make your garden, balcony or terrace a unique place to enjoy the last sweets of the year.


© Helin Loik-Tomson

Video: September Garden Tour, Part 1. Detailed Garden Tour of Varieties u0026 Tips (October 2020).