04/09/2026
JOBS ON THE PLOT – SEPTEMBER
September is a real changeover month on the allotment. There’s still plenty to harvest from summer, but autumn is arriving and it’s time to start preparing the plot for the months ahead.
Keep harvesting
Tomatoes, courgettes, beans, sweetcorn and potatoes may still be producing, while apples, pears and plums are ready to pick as they ripen.
Get autumn and winter crops started
Now is a good time to sow or plant crops that will keep producing through the colder months, including spinach, kale and spring cabbages. Garlic and overwintering onions can also go in.
Clear and tidy
Remove finished crops, tackle weeds before they set seed and cut back old raspberry canes. Remember, healthy plant material can go onto the compost heap.
Look after your soil
Adding well-rotted compost or manure helps feed the soil, while mulching around fruit trees and bushes can protect their roots over winter.
Keep an eye out for pests
As temperatures begin to fall, slugs can become a problem. Check brassicas for caterpillars and make sure plants are protected from hungry birds where needed.
Don't forget the greenhouse or polytunnel
Keep ventilating on warmer days, but reduce watering as temperatures drop. Start clearing summer crops, clean the glass and make space for winter salads and other crops.
And finally… plan ahead!
Make a note of what grew well this year, what didn't, and what you might do differently next season. It’s also a good time to start thinking about crop rotation and ordering seeds.
September is about harvesting what you've grown, preparing for autumn and giving your plot a good start for next year.
What jobs are you getting stuck into on your plot this September? Share your tips, photos and progress below! 👇
