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Gardening expert urges people to do 7 important jobs in September
Reach Daily Express | September 20, 2025 6:39 AM CST

It's September, which means the weather is generally getting cooler and the days are getting noticeably shorter. It might feel like there's not as much to do in your garden as there was at the peak of summer, but you might be harvesting the rewards of all your hard work.

That being said, it's that time of year where you might want to prepare your garden or outdoor space for the colder months ahead. It's also a time to start planting spring-flowering bulbs so you can enjoy them next summer.

If you're still a bit lost for what jobs you should be prioritising this month, keen gardener Michael Griffiths has shared some helpful advice. Michael often shares tips and tricks online, helping others to cultivate for beuatiful Mediterranean-style gardens.

In a recen video to his 326k TikTok followers, the gardening expert shares seven "essential gardening jobs for September". Starting off, he said: "Autumn is the perfect time to start lawn maintenance again. You want to set your mowing height to about 4cm to allow the grass to get ready for winter.

"Whether you do it manually or mechanically, it's also the perfect time to scarify, aerate and overseed your lawn. But remember to switch from summer lawn feed to an autumn lawn feed."

Scarifying means using a metal rake or tool to remove thatch, dead grass and moss from the surface of the turf. This allows for more air, water and nutrients to reach the soil, and it can be very effective in autumn.

Meanwhile, aerating the lawn means creating small holes in the soil to improve the air circulation, water absorbition and nutrient uptake for the roots. Overseeding the lawn means sowing new grass seeds directly into the lawn, without removeing old turf. This can improve the health and appearance of a tired or worn-out lawn.

According to Michael, you've still got time to "prune hedges and take cuttings from plants like hydrangeas, roses, fuchias and salvias". You should also be checking your roses for black spots, and "remove anything that's affected".

If you find any "congested clumps of perennials once they finish flowering", you should lift, divide and replant them now. It's also a good time to finish pruning summer fruit trees.

Finishing off his advice, Michael said: "You can now plant prepared hyacinth bulbs in pots for an indoor display."


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