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Vegetables to Sow in September

Wondering which vegetables to sow in September? The veg you sow now will keep your garden productive through the winter. Sow salad onions ready for early spring, broccoli for the first harvests next year, plus winter lettuce and radishes. Browse our September vegetable seeds.

Wondering which vegetables to sow in September? The veg you sow now will keep your garden productive through the winter. Sow salad onions ready for early spring, broccoli for the first harvests next year, plus winter lettuce and radishes. Browse our September vegetable seeds.

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Radish Seeds - Black Spanish Round

Average Packet Content 450 seeds

£1.99

Kale Shoots Seeds

Average Packet Content 500 seeds

£2.99

Onion Seeds - Purplette

Average Packet Content 150 seeds

£1.99

Cauliflower Seeds - Snowball A

Average Packet Content 200 seeds

£1.99

Leaf Salad Seeds - Wild Dragons Tongue

Average Packet Contents 200 seeds

£1.99

Cabbage (Collard) Seeds - F1 Sweetie

Average Packet Content 25 seeds

£3.99

Oyster Leaf Plant Seeds

Packet Content 5 seeds

£3.99

Flowering Carrot Seeds - Dara

Average Packet Content 40 seeds

£2.99

Speedy Veg Seed - Leaf Salad Cress Greek

Average Packet Content 1000 Seeds

£1.55

Kale (Borecole) Seeds - F1 Peacock White

Average Packet Content 30 Seeds

£3.49

Onion Seeds - Senshyu Semi-Globe Yellow

Average Packet Content 350 seeds

£2.79

Wheatgrass Shoots Seeds

Average Packet Content 500 seeds

£2.99

Cress Seeds - Curled

Average Packet Content 10000 seeds

£1.55

Onion (Salad) Seeds - Red & White Mix

Average Packet Content 300 seeds

£2.49

Lettuce Seeds - John

Average Packet Content 100 seeds

£2.49

Alfalfa Sprouting Seeds

Average Packet Content 9500 seeds

£1.99

Lettuce Seeds - Rossa di Trento

Average Packet Content 200 seeds

£2.99

Sprouting Seeds - Broccoli Green-Sprouting

Average Packet Content 2500 seeds

£2.79

Lettuce Seeds - Lobjoits Green

Average Packet Content 1300 seeds

£1.75

Radish Seeds - Scarlet Globe

Average Packet Content 400 Seeds

£1.55

Spinach Seeds - F1 Comred

Average Packet Content 200 seeds

£2.99

Carrot Seeds - F1 Fire Wedge

Average Packet Content 200 seeds

£2.99

Fenugreek Shoots Seeds

Average Packet Content 500 seeds

£2.99

Leaf Salad Seeds - Italian Mix

Average Packet Content 900 seeds

£2.79

Lettuce Seeds - Winter Density

Average Packet Contents 1400 seeds

£1.99
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There’s a whole range of veg to sow in September (and right up until October in fact), and now’s the time when your cold frame and greenhouse come into their own. If you want to sow your September seeds outside, use a fleece of perforated polythene to protect them.

Transplant spring cabbage into their final growing positions. For a supply of herbs during the winter, pot up basil, marjoram, mint, oregano and parsley plants and grow them on the kitchen windowsill. You can also pot up cut-and-come again salad varieties pots for tasty leaves in the autumn. 

Crops should be picked regularly ensuring they are always fresh and tender, and items such as courgettes and beans shouldn’t be left too long prior to picking.

It’s also time to grow autumn-planting shallots and onions, and you will be able harvest June to July (Shallots until September) the following year.

Head to our blog for more September gardening advice.

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