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what to sow and grow in september

What to do sow and grow in September

Find out what to plant in September with our seasonal list of flowers, fruit, vegetables and seeds. These can be ordered now for sowing, growing and harvesting over the coming months!

What to sow and grow in September

Find out what to plant in September with our seasonal list of flowers, fruit, vegetables and seeds. These can be ordered now for sowing, growing and harvesting over the coming months!

Flowers to sow and grow

In the greenhouse/ indoors

Surface-sow Euphorbia seeds now in trays indoors.

Sow Dierama seed now on the surface of moist compost. Keep in a coldframe or cool greenhouse over-winter.

In the cold frame / under cloches

For fruity colour from early summer next year sow Calendula seeds in pots now and keep in a coldframe.

sow perennial salvias into pots and trays outdoors
Sow perennial salvias into pots and trays outdoors

Sow Violas in a cold frame and plant out in the spring.

Sow Lupins, Aquilegia, Aconitum and Hollyhocks in a coldframe now and plant out next spring.

Enjoy the silvery spiky foliage of Eryngium and Echinops by sowing in pots and placing in a coldframe now.

Start Verbascum seeds off outdoors now either direct sown or in pots in a coldframe.

Sow perennial Salvias into pots and trays outdoors now and leave in a coldframe or unheated greenhouse through the winter.

Sow Red Hot Pokers into pots and trays outdoors for flowers next summer!

Attract bees and butterflies into your garden by sowing Helenium now in a coldframe.

Hardy Geraniums can be sown now outdoors and left to over-winter.

Direct sow outdoors

direct sow annual poppies which will flower earlier next year
Direct sow annual poppies which will flower earlier next year

Get the Chelsea look by sowing Ammi majus (Bishop's Weed)) directly in the ground now where you'd like it to flower!

Direct sow hardy annuals such as cornflowers, poached egg plant, annual poppies and larkspur which will flower earlier next year.

California Poppies don't transplant well so sprinkle them into your borders now for stunning colour late next spring.

Direct sowings of Love-in-a-Mist will over-winter quite happily and will self-seed prolifically!

Sow Delphiniums now where you would like them to flower next summer.

Fruit & Vegetables to sow and grow

In the greenhouse / indoors

Sow Pak Choi outdoors now
Sow Pak Choi outdoors now

Now is your last chance to sow spring cabbages such as 'April' and 'Durham Early'. Sow them directly in the soil or start them off in modules.

In the cold frame/ under cloches

Direct sow Spinach now and offer cloche protection as the weather cools. This will ensure harvests throughout autumn and winter.

Sow Pak Choi outdoors now for an autumn supply of baby salad leaves.

Direct sow outdoors

Corn Salad (lamb's lettuce) is a fully hardy crop which can be sown outdoors now for cropping throughout the autumn and winter.

Sow 'green manures' on empty beds now to help improve your soil structure and prevent weeds establishing over winter.

Last direct sowings of summer radishes can be made now
Last direct sowings of summer radishes can be made now

Onion 'Hi Keeper' is the best variety of onion for autumn sowing into a well prepared seed bed. Only thin your onion seedlings in the spring.

Salad Leaves can be direct sown now and are at less risk of bolting.

Spinach 'Perpetual' is very hardy - try sowing seed outdoors now for winter harvests later in the year.

Winter-hardy spring onions such as 'White Lisbon' and 'Performer' should be sown outdoors now for crops next spring.

Last direct sowings of summer radishes can be made now - the cool autumn conditions are ideal.

You can still sow turnip seeds into well prepared beds for small roots.

Sow winter lettuce such as 'Arctic King' directly into the ground now.

Plant outdoors

Plant out any spring cabbages sown during the summer.

Start planting garlic bulbs for cropping next year
Start planting garlic bulbs for cropping next year

The end of this month is the perfect time to start planting garlic bulbs for cropping next year.

You can start to plant autumn onion sets this month.

There's still time to plant Pak Choi  for a late crop of baby leaves.