Harman UK

South East England Vegetable Planting Calendar

Sowing and planting dates for vegetables in South East England, worked out from the region's average frost dates. Last spring frost: early to mid May. First autumn frost: late October to November.

Hardy vegetables

These tolerate cold and can be sown from a few weeks before the last frost, as soon as the soil is workable. Some are also worth starting under cover for an earlier crop.

VegetableStart indoorsSow / plant outdoorsLast sow for autumn
Beetroot - 10 Apr 25 Aug
Bok Choy 10 Apr 24 Apr 30 Aug
Broad Beans 8 May 10 Apr 26 Jul
Broccoli 27 Mar 24 Apr 15 Aug
Brussels Sprouts 27 Mar 24 Apr 11 Jul
Cabbage 27 Mar 17 Apr 10 Aug
Carrots - 17 Apr 10 Aug
Cauliflower 27 Mar 24 Apr 10 Aug
Celery 27 Feb 15 May -
Corn Salad 8 May 10 Apr 20 Aug
Endive 3 Apr 24 Apr 21 Jul
Fennel 10 Apr 24 Apr 31 Jul
Kale 27 Mar 17 Apr 25 Aug
Kohlrabi 10 Apr 24 Apr 25 Aug
Leeks 27 Feb 24 Apr 21 Jun
Lettuce 10 Apr 10 Apr 30 Aug
Mustard Greens - 24 Apr 4 Sep
Onions 27 Feb 10 Apr -
Parsnips - 24 Apr 21 Jun
Peas - 27 Mar 20 Aug
Potatoes - 24 Apr -
Radicchio 3 Apr 24 Apr 10 Aug
Radishes - 10 Apr 21 Sep
Rocket - 24 Apr 9 Sep
Sorrel 27 Mar 17 Apr 20 Aug
Spinach - 27 Mar 4 Sep
Spring Onions - 24 Apr 20 Aug
Swede - 8 May 16 Jul
Swiss Chard 10 Apr 24 Apr 25 Aug
Turnips - 24 Apr 30 Aug
Watercress 17 Apr 24 Apr 20 Aug

Tender vegetables

These are damaged by frost. Start them under cover and plant out only once the risk of frost has passed in your own garden. Harden plants off over a week or so before they go outside.

VegetableStart indoorsSow / plant outdoorsLast sow for autumn
Aubergine 13 Mar 22 May -
Courgette 17 Apr 15 May 30 Aug
Cucumbers 17 Apr 15 May 25 Aug
Edamame 8 May 22 May -
French Beans - 8 May 25 Aug
Melons 17 Apr 22 May -
New Zealand Spinach 10 Apr 22 May -
Peppers 13 Mar 22 May -
Pumpkins 17 Apr 15 May -
Summer Squash 17 Apr 15 May 28 Aug
Sweet Corn - 15 May -
Sweet Potatoes - 29 May -
Tomatoes 27 Mar 15 May -
Winter Squash 17 Apr 15 May -

"Sow / plant outdoors" is the transplant-out date where a crop is started indoors, otherwise the direct-sowing date. "Last sow for autumn" is the latest sensible sowing for a crop to mature before the first autumn frost.

Reading these dates

These are guides based on South East England's approximate average frost dates, not a forecast. Aspect, altitude, shelter and the weather in any given year can shift them by two weeks or more, so treat them as a starting point and adjust to your own plot. Sow a little later in a cold spring and keep horticultural fleece ready for a late frost.