
Cool’s advice for September
Now comes a time of gentle release, of sitting a moment on a garden’s boulder, after summer’s glorious performance. In the sky, the caravan of birds points south, tracing ancient maps towards warmer shores: welcome Autumn… Don’t be sad, instead get prepared! It won’t be long before vitamined citrus and golden olives raise their joyful flags!
What to harvest now
🌾🧑🌾Vegetables that can now can be harvested: tomatoes, cucumbers, eggplants, peppers, paprika, radishes, carrots, potatoes, onions, all salad crops (salad leaves, all lettuce and fennel), all leafy greens (chard, spinach), legumes (peas, and beans (runner), all squash: courgettes, squash. Other vegetables: artichokes and sweetcorn
🍇Fruits: plums, walnuts, apples and quince, pears, figs. Make jams to continue enjoying them for months.
🌿Harvest all herbs, dry or freeze, or propagate them- More on plant propagation here
💐 Flowers cuttings: cut some sunflowers and a bunch of roses before they brown
What to sow or plant now
🌱 Put herbs in a pot and place them in a windowsill in a sunny spot for winter usage: coriander, parsley, mint, chives, onions and shallots
✏️Order your seeds and bare-root fruit trees to plant later in autumn or winter
🌱Start planting new perennials as well as trees/shrubs/climbers.
🌸Now is a good time to start planting your spring bulbs
🌱 Sow spring onions
🌱Do a last outside sowing of radish and rocket to harvest them in 3 to 5 weeks
🌱Pot up strawberry runners to make new plants for next summer.
🌱 Last call to sow your winter season vegetables : onions, broccoli, cauliflower, cabbage, carrots, celeri, leeks,
🌱🧑🌾 For more information of what and when to sow indoors or outdoors, check our Seeds and Seasons Calendar for help 📆
To-do list
✔️ Time to divide perennials: divide overcrowded perennial plants vegetables, flowers and herbs alike (Guide: How to propagate lavender)
✔️ Consider saving seeds from your favorite vegetables and flowers for future planting
✔️ Monitor plants for diseases, especially on tomatoes and other vulnerable crops, especially now that they are getting weaker
✔️Take care of your roses: prune your roses once they’ve finished flowering. Remove suckers from the base of roses and trees.; check your roses diseases, such as blackspot, and pick off and bin all affected leaves; remove fallen leaves from the base of roses to prevent the spread of disease
✔️Your September Pruning Checklist: Summer Berries: Cut back the canes of raspberries and blackberries that have finished fruiting. // Aromatic Herbs: Prune lavender, rosemary, and sage to maintain their shape and prevent disease. // Garden Borders: Tidy up herbaceous perennials and late-summer shrubs to encourage new growth. // Hedges: Give evergreen hedges a final trim to keep them neat and healthy through the winter.
Sustainability actions
🐝 Compost heap:: add healthy plant matter from your garden
🐝Collect seeds from your favourite plants and store them in a cool and dry place, in labelled envelopes, ready to sow in spring
🐝Get ready to plant some green manures. Green manures offer multiple benefits: they prevent soil erosion and nutrient leaching over winter, improve soil structure, and enrich the soil with nutrients when dug in. They also create a protective cover for beneficial insects like ground beetles and, if allowed to flower, are a source of nectar and attract pollinators like honeybee, bumble bee and hoverfly.
🐝Legume crops that have finished their harvest (beans, peas…) can be cut back, leave the roots in the soil to provide extra nitrogen for future crops.
🐝 Remember the vast majority of insects are good and biodiversity is key
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