Northern Ireland, UK

Planting calendar for Lisburn

Last frost around 12 March, first frost around 13 December: about 276 frost-free days.

Last frost: 12 March
First frost: 13 December
Frost-free days: 276

Sow now: November

See the whole year

Outdoors

Broad bean
Garlic
Raspberry
Rhubarb

Under cover

Nothing this month.

The year at a glance

When each crop can be sown in Lisburn. Tap a crop for exact dates and when it’s ready to harvest.

Sow outdoorsSow under cover (a greenhouse or polytunnel)

When to sow each crop in Lisburn, month by month. Each month says whether you can sow outdoors, under cover, or both.
Crop	JJan	FFeb	MMar	AApr	MMay	JJun	JJul	AAug	SSep	OOct	NNov	DDec
Fruiting
Tomato	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Chilli	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Sweet pepperUnder cover only	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
AubergineUnder cover only	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Courgette	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Cucumber	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Squash	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Sweetcorn	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Roots
Carrot	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Beetroot	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Parsnip	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Radish	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
Potato	January: Not this month	February: Plant under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Turnip	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Leaves
Lettuce	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Spinach	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
Swiss chard	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Rocket	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
Celery	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Beans and peas
Runner bean	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
French bean	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Broad bean	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Sow under cover	September: Sow outdoors and under cover	October: Sow outdoors and under cover	November: Sow outdoors and under cover	December: Sow under cover
Pea	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Onion family
Onion	January: Not this month	February: Plant under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Garlic	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Plant under cover	September: Plant outdoors and under cover	October: Plant outdoors and under cover	November: Plant outdoors and under cover	December: Plant under cover
Leek	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Spring onion	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Shallot	January: Plant outdoors and under cover	February: Plant outdoors and under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Plant under cover
Brassicas
Cabbage	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Broccoli	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Cauliflower	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Brussels sprout	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Kale	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Pak choi	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Herbs
Basil	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Parsley	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Coriander	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Chives	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Mint	January: Not this month	February: Not this month	March: Sow under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow outdoors and under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
Fruit
Strawberry	January: Not this month	February: Plant under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Raspberry	January: Plant outdoors and under cover	February: Plant under cover	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Plant under cover	November: Plant outdoors and under cover	December: Plant outdoors and under cover
Rhubarb	January: Plant under cover	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Plant under cover	October: Plant outdoors and under cover	November: Plant outdoors and under cover	December: Plant outdoors and under cover

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors 2 Jun to 12 Jun; Under cover 5 May to 15 May, and 2 Jun to 12 Jun, and 30 Jun to 10 Jul

Sow outdoors: 2 Jun to 12 Jun
Under cover: 5 May to 15 May, and 2 Jun to 12 Jun, and 30 Jun to 10 Jul
First harvest: About 176 days after sowing. Sown on 2 June, ready around 25 November.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Tomato across the UK, town by town

ChilliOutdoors 1 Jun to 7 Jun; Under cover 4 May to 10 May, and 1 Jun to 7 Jun, and 29 Jun to 5 Jul

Sow outdoors: 1 Jun to 7 Jun
Under cover: 4 May to 10 May, and 1 Jun to 7 Jun, and 29 Jun to 5 Jul
First harvest: About 224 days after sowing. Sown on 1 June, ready around 11 January.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Chilli across the UK, town by town

Sweet pepperUnder cover 15 May to 14 Jun

Sow outdoors: Not here: season too short
Under cover: 15 May to 14 Jun
First harvest: About 78 days after sowing. Sown on 15 May, ready around 1 August.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Sweet pepper across the UK, town by town

AubergineUnder cover 15 May to 9 Jun

Sow outdoors: Not here: season too short
Under cover: 15 May to 9 Jun
First harvest: About 90 days after sowing. Sown on 15 May, ready around 13 August.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Aubergine across the UK, town by town

CourgetteOutdoors 1 Jun to 24 Jul; Under cover 4 May to 21 Aug

Sow outdoors: 1 Jun to 24 Jul
Under cover: 4 May to 21 Aug
First harvest: About 68 days after sowing. Sown on 1 June, ready around 8 August.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Courgette across the UK, town by town

CucumberOutdoors 1 Jun to 16 Jul; Under cover 4 May to 13 Aug

Sow outdoors: 1 Jun to 16 Jul
Under cover: 4 May to 13 Aug
First harvest: About 81 days after sowing. Sown on 1 June, ready around 21 August.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Cucumber across the UK, town by town

SquashOutdoors 1 Jun to 16 Jun; Under cover 4 May to 19 May, and 1 Jun to 16 Jun, and 29 Jun to 14 Jul

Sow outdoors: 1 Jun to 16 Jun
Under cover: 4 May to 19 May, and 1 Jun to 16 Jun, and 29 Jun to 14 Jul
First harvest: About 176 days after sowing. Sown on 1 June, ready around 24 November.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Squash across the UK, town by town

SweetcornOutdoors 26 May to 21 Jun; Under cover 28 Apr to 19 Jul

Sow outdoors: 26 May to 21 Jun
Under cover: 28 Apr to 19 Jul
First harvest: About 128 days after sowing. Sown on 26 May, ready around 1 October.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

Sweetcorn across the UK, town by town

Roots

CarrotOutdoors 4 Apr to 2 Aug; Under cover 7 Mar to 30 Aug

Sow outdoors: 4 Apr to 2 Aug
Under cover: 7 Mar to 30 Aug
First harvest: About 109 days after sowing. Sown on 4 April, ready around 22 July.
Warmth: Hardy: grows once days average 7°C.

Carrot across the UK, town by town

BeetrootOutdoors 4 Apr to 2 Aug; Under cover 7 Mar to 30 Aug

Sow outdoors: 4 Apr to 2 Aug
Under cover: 7 Mar to 30 Aug
First harvest: About 76 days after sowing. Sown on 4 April, ready around 19 June.
Warmth: Hardy: grows once days average 7°C.

Beetroot across the UK, town by town

ParsnipOutdoors 15 Mar to 16 Jun; Under cover 15 Feb to 14 Jul

Sow outdoors: 15 Mar to 16 Jun
Under cover: 15 Feb to 14 Jul
First harvest: About 145 days after sowing. Sown on 15 March, ready around 7 August.
Warmth: Hardy: grows once days average 6°C.

Parsnip across the UK, town by town

RadishOutdoors 15 Mar to 13 Sep; Under cover 15 Feb to 11 Oct

Sow outdoors: 15 Mar to 13 Sep
Under cover: 15 Feb to 11 Oct
First harvest: About 32 days after sowing. Sown on 15 March, ready around 16 April.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Radish across the UK, town by town

PotatoOutdoors 15 Mar to 20 May; Under cover 15 Feb to 17 Jun

Plant outdoors: 15 Mar to 20 May
Under cover: 15 Feb to 17 Jun
First harvest: About 112 days after planting. Planted on 15 March, ready around 5 July.
Warmth: Hardy: grows once days average 6°C.

Potato across the UK, town by town

TurnipOutdoors 15 Mar to 10 Aug; Under cover 15 Feb to 7 Sep

Sow outdoors: 15 Mar to 10 Aug
Under cover: 15 Feb to 7 Sep
First harvest: About 68 days after sowing. Sown on 15 March, ready around 22 May.
Warmth: Hardy: grows once days average 6°C.

Turnip across the UK, town by town

Leaves

LettuceOutdoors 21 Mar to 6 Aug; Under cover 21 Feb to 3 Sep

Sow outdoors: 21 Mar to 6 Aug
Under cover: 21 Feb to 3 Sep
First harvest: About 77 days after sowing. Sown on 21 March, ready around 6 June.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Lettuce across the UK, town by town

SpinachOutdoors 15 Mar to 16 Sep; Under cover 15 Feb to 14 Oct

Sow outdoors: 15 Mar to 16 Sep
Under cover: 15 Feb to 14 Oct
First harvest: About 51 days after sowing. Sown on 15 March, ready around 5 May.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Spinach across the UK, town by town

Swiss chardOutdoors 4 Apr to 10 Aug; Under cover 7 Mar to 7 Sep

Sow outdoors: 4 Apr to 10 Aug
Under cover: 7 Mar to 7 Sep
First harvest: About 65 days after sowing. Sown on 4 April, ready around 8 June.
Warmth: Hardy: grows once days average 7°C.

Swiss chard across the UK, town by town

RocketOutdoors 15 Mar to 15 Sep; Under cover 15 Feb to 13 Oct

Sow outdoors: 15 Mar to 15 Sep
Under cover: 15 Feb to 13 Oct
First harvest: About 45 days after sowing. Sown on 15 March, ready around 29 April.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Rocket across the UK, town by town

CeleryOutdoors 23 Feb to 9 May; Under cover 26 Jan to 6 Jun

Sow outdoors: 23 Feb to 9 May
Under cover: 26 Jan to 6 Jun
First harvest: About 150 days after sowing. Sown on 23 February, ready around 23 July.
Warmth: Hardy: grows once days average 5°C.

Celery across the UK, town by town

Beans and peas

Runner beanOutdoors 26 May to 2 Jul; Under cover 28 Apr to 30 Jul

Sow outdoors: 26 May to 2 Jul
Under cover: 28 Apr to 30 Jul
First harvest: About 108 days after sowing. Sown on 26 May, ready around 11 September.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

Runner bean across the UK, town by town

French beanOutdoors 26 May to 20 Jul; Under cover 28 Apr to 17 Aug

Sow outdoors: 26 May to 20 Jul
Under cover: 28 Apr to 17 Aug
First harvest: About 80 days after sowing. Sown on 26 May, ready around 14 August.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

French bean across the UK, town by town

Broad beanOutdoors 22 Sep to 23 Nov; Under cover 25 Aug to 21 Dec

Sow outdoors: 22 Sep to 23 Nov
Under cover: 25 Aug to 21 Dec
First harvest: About 220 days after sowing. Sown on 22 September, ready around 30 April.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Broad bean across the UK, town by town

PeaOutdoors 15 Mar to 9 Jul; Under cover 15 Feb to 6 Aug

Sow outdoors: 15 Mar to 9 Jul
Under cover: 15 Feb to 6 Aug
First harvest: About 90 days after sowing. Sown on 15 March, ready around 13 June.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Pea across the UK, town by town

Onion family

OnionOutdoors 8 Mar to 9 May; Under cover 8 Feb to 6 Jun

Plant outdoors: 8 Mar to 9 May
Under cover: 8 Feb to 6 Jun
First harvest: About 158 days after planting. Planted on 8 March, ready around 13 August.
Warmth: Hardy: grows once days average 6°C.

Onion across the UK, town by town

GarlicOutdoors 22 Sep to 6 Dec; Under cover 25 Aug to 3 Jan

Plant outdoors: 22 Sep to 6 Dec
Under cover: 25 Aug to 3 Jan
First harvest: About 250 days after planting. Planted on 22 September, ready around 30 May.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Garlic across the UK, town by town

LeekOutdoors 15 Mar to 1 Aug; Under cover 15 Feb to 29 Aug

Sow outdoors: 15 Mar to 1 Aug
Under cover: 15 Feb to 29 Aug
First harvest: About 168 days after sowing. Sown on 15 March, ready around 30 August.
Warmth: Hardy: grows once days average 6°C.

Leek across the UK, town by town

Spring onionOutdoors 23 Feb to 1 Sep; Under cover 26 Jan to 29 Sep

Sow outdoors: 23 Feb to 1 Sep
Under cover: 26 Jan to 29 Sep
First harvest: About 83 days after sowing. Sown on 23 February, ready around 17 May.
Warmth: Hardy: grows once days average 5°C.

Spring onion across the UK, town by town

ShallotOutdoors 22 Jan to 9 May; Under cover 25 Dec to 6 Jun

Plant outdoors: 22 Jan to 9 May
Under cover: 25 Dec to 6 Jun
First harvest: About 171 days after planting. Planted on 22 January, ready around 12 July.
Warmth: Hardy: grows once days average 5°C.

Shallot across the UK, town by town

Brassicas

CabbageOutdoors 15 Mar to 2 Aug; Under cover 15 Feb to 30 Aug

Sow outdoors: 15 Mar to 2 Aug
Under cover: 15 Feb to 30 Aug
First harvest: About 123 days after sowing. Sown on 15 March, ready around 16 July.
Warmth: Hardy: grows once days average 6°C.

Cabbage across the UK, town by town

BroccoliOutdoors 4 Apr to 2 Aug; Under cover 7 Mar to 30 Aug

Sow outdoors: 4 Apr to 2 Aug
Under cover: 7 Mar to 30 Aug
First harvest: About 98 days after sowing. Sown on 4 April, ready around 11 July.
Warmth: Hardy: grows once days average 7°C.

Broccoli across the UK, town by town

CauliflowerOutdoors 15 Mar to 9 Jul; Under cover 15 Feb to 6 Aug

Sow outdoors: 15 Mar to 9 Jul
Under cover: 15 Feb to 6 Aug
First harvest: About 134 days after sowing. Sown on 15 March, ready around 27 July.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Cauliflower across the UK, town by town

Brussels sproutOutdoors 15 Mar to 26 May; Under cover 15 Feb to 23 Jun

Sow outdoors: 15 Mar to 26 May
Under cover: 15 Feb to 23 Jun
First harvest: About 205 days after sowing. Sown on 15 March, ready around 6 October.
Warmth: Hardy: grows once days average 6°C.

Brussels sprout across the UK, town by town

KaleOutdoors 4 Apr to 2 Aug; Under cover 7 Mar to 30 Aug

Sow outdoors: 4 Apr to 2 Aug
Under cover: 7 Mar to 30 Aug
First harvest: About 87 days after sowing. Sown on 4 April, ready around 30 June.
Warmth: Hardy: grows once days average 7°C.

Kale across the UK, town by town

Pak choiOutdoors 21 Apr to 28 Aug; Under cover 24 Mar to 25 Sep

Sow outdoors: 21 Apr to 28 Aug
Under cover: 24 Mar to 25 Sep
First harvest: About 48 days after sowing. Sown on 21 April, ready around 8 June.
Warmth: Hardy: grows once days average 8°C; bolts in hot weather.

Pak choi across the UK, town by town

Herbs

BasilOutdoors 21 Apr to 26 Jul; Under cover 24 Mar to 23 Aug

Sow outdoors: 21 Apr to 26 Jul
Under cover: 24 Mar to 23 Aug
First harvest: About 69 days after sowing. Sown on 21 April, ready around 29 June.
Warmth: Tender: needs days averaging 8°C or more, and no frost.

Basil across the UK, town by town

ParsleyOutdoors 15 Mar to 13 Aug; Under cover 15 Feb to 10 Sep

Sow outdoors: 15 Mar to 13 Aug
Under cover: 15 Feb to 10 Sep
First harvest: About 84 days after sowing. Sown on 15 March, ready around 7 June.
Warmth: Hardy: grows once days average 6°C.

Parsley across the UK, town by town

CorianderOutdoors 4 Apr to 29 Aug; Under cover 7 Mar to 26 Sep

Sow outdoors: 4 Apr to 29 Aug
Under cover: 7 Mar to 26 Sep
First harvest: About 54 days after sowing. Sown on 4 April, ready around 28 May.
Warmth: Hardy: grows once days average 7°C; bolts in hot weather.

Coriander across the UK, town by town

ChivesOutdoors 15 Mar to 16 Jun; Under cover 15 Feb to 14 Jul

Sow outdoors: 15 Mar to 16 Jun
Under cover: 15 Feb to 14 Jul
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 6°C.

Chives across the UK, town by town

MintOutdoors 4 Apr to 6 Oct; Under cover 7 Mar to 3 Nov

Sow outdoors: 4 Apr to 6 Oct
Under cover: 7 Mar to 3 Nov
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 7°C.

Mint across the UK, town by town

Fruit

StrawberryOutdoors 15 Mar to 26 May; Under cover 15 Feb to 23 Jun

Plant outdoors: 15 Mar to 26 May
Under cover: 15 Feb to 23 Jun
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 6°C.

Strawberry across the UK, town by town

RaspberryOutdoors 31 Oct to 21 Jan; Under cover 3 Oct to 18 Feb

Plant outdoors: 31 Oct to 21 Jan
Under cover: 3 Oct to 18 Feb
First harvest: Crops every year once it’s established.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Raspberry across the UK, town by town

RhubarbOutdoors 10 Oct to 29 Dec; Under cover 12 Sep to 26 Jan

Plant outdoors: 10 Oct to 29 Dec
Under cover: 12 Sep to 26 Jan
First harvest: Crops every year once it’s established.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Rhubarb across the UK, town by town

Nearby

Questions about growing in Lisburn

When is the last frost in Lisburn?

On average around 12 March, and the first autumn frost comes around 13 December. In a cold spring a frost can come a week or two late, so tender plants are safest out a week after the date.

Can I grow tomatoes outdoors in Lisburn?

Yes. Plant them outdoors 2 Jun to 12 Jun, or under cover 5 May to 15 May, and 2 Jun to 12 Jun, and 30 Jun to 10 Jul.

What can I sow in Lisburn in November?

Outdoors: broad bean, garlic, raspberry, rhubarb.

How accurate are these dates?

They’re worked out from 30 years of climate data for this spot, adjusted for its height, so they’re a good guide for a typical year. Check the forecast before planting out anything tender.

Get these dates as reminders

Bia turns this calendar into a nudge when it’s time to sow, plant out and harvest, for your plot in Lisburn. Free for 2 months.

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How these dates are worked out: climate records for this spot (ERA5-Land, 1995 to 2024), the local frost dates and the height above sea level turn a seed-packet date into a local one. Contains modified Copernicus Climate Change Service information; towns from GeoNames (CC BY 4.0). How sowing dates work