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England, UK

Planting calendar for Middlesbrough

Last frost around 1 April, first frost around 27 November: about 240 frost-free days.

Last frost
1 April
on average
First frost
27 November
on average
Frost-free days
240
in a typical year

Sow now: November

See the whole year

Outdoors

Under cover

Nothing this month.

The year at a glance

When each crop can be sown in Middlesbrough. 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 Middlesbrough, month by month. Each month says whether you can sow outdoors, under cover, or both.
CropJJanFFebMMarAAprMMayJJunJJulAAugSSepOOctNNovDDec
Fruiting
TomatoJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ChilliJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Sweet pepperJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
AubergineJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CourgetteJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CucumberJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
SquashJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
SweetcornJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Roots
CarrotJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
BeetrootJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ParsnipJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
RadishJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
PotatoJanuary: Not this monthFebruary: Plant under coverMarch: Plant outdoors and under coverApril: Plant outdoors and under coverMay: Plant outdoors and under coverJune: Plant under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
TurnipJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Leaves
LettuceJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
SpinachJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
Swiss chardJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
RocketJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
CeleryJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow under coverJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Beans and peas
Runner beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
French beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Broad beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Sow under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow under cover
PeaJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Onion family
OnionJanuary: Not this monthFebruary: Plant under coverMarch: Plant outdoors and under coverApril: Plant outdoors and under coverMay: Plant under coverJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
GarlicJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Plant under coverOctober: Plant outdoors and under coverNovember: Plant outdoors and under coverDecember: Plant under cover
LeekJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Spring onionJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
ShallotJanuary: Plant under coverFebruary: Plant outdoors and under coverMarch: Plant outdoors and under coverApril: Plant outdoors and under coverMay: Plant under coverJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Brassicas
CabbageJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
BroccoliJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CauliflowerJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Brussels sproutJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
KaleJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Pak choiJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Herbs
BasilJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ParsleyJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
CorianderJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
ChivesJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
MintJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
Fruit
StrawberryJanuary: Not this monthFebruary: Plant under coverMarch: Plant outdoors and under coverApril: Plant outdoors and under coverMay: Plant outdoors and under coverJune: Plant under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
RaspberryJanuary: Plant outdoors and under coverFebruary: Plant under coverMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Plant under coverNovember: Plant outdoors and under coverDecember: Plant outdoors and under cover
RhubarbJanuary: Plant under coverFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Plant under coverOctober: Plant outdoors and under coverNovember: Plant outdoors and under coverDecember: Plant outdoors and under cover

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors 28 May to 25 Jun; Under cover 30 Apr to 23 Jul
Tomato growing on a plot
Sow outdoors
28 May to 25 Jun
Under cover
30 Apr to 23 Jul
First harvest
About 120 days after sowing. Sown on 28 May, ready around 25 September.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Tomato across the UK, town by town
ChilliOutdoors 27 May to 25 Jun; Under cover 29 Apr to 23 Jul
Chilli growing on a plot
Sow outdoors
27 May to 25 Jun
Under cover
29 Apr to 23 Jul
First harvest
About 224 days after sowing. Sown on 27 May, ready around 6 January.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Chilli across the UK, town by town
Sweet pepperOutdoors 2 Jun to 1 Jul; Under cover 5 May to 29 Jul
Sweet pepper growing on a plot
Sow outdoors
2 Jun to 1 Jul
Under cover
5 May to 29 Jul
First harvest
About 208 days after sowing. Sown on 2 June, ready around 27 December.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Sweet pepper across the UK, town by town
AubergineOutdoors 2 Jun to 25 Jun; Under cover 5 May to 23 Jul
Aubergine growing on a plot
Sow outdoors
2 Jun to 25 Jun
Under cover
5 May to 23 Jul
First harvest
About 240 days after sowing. Sown on 2 June, ready around 28 January.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Aubergine across the UK, town by town
CourgetteOutdoors 27 May to 14 Jul; Under cover 29 Apr to 11 Aug
Courgette growing on a plot
Sow outdoors
27 May to 14 Jul
Under cover
29 Apr to 11 Aug
First harvest
About 62 days after sowing. Sown on 27 May, ready around 28 July.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Courgette across the UK, town by town
CucumberOutdoors 27 May to 14 Jul; Under cover 29 Apr to 11 Aug
Cucumber growing on a plot
Sow outdoors
27 May to 14 Jul
Under cover
29 Apr to 11 Aug
First harvest
About 73 days after sowing. Sown on 27 May, ready around 8 August.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Cucumber across the UK, town by town
SquashOutdoors 27 May to 1 Jul; Under cover 29 Apr to 29 Jul
Squash growing on a plot
Sow outdoors
27 May to 1 Jul
Under cover
29 Apr to 29 Jul
First harvest
About 119 days after sowing. Sown on 27 May, ready around 23 September.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Squash across the UK, town by town
SweetcornOutdoors 22 May to 1 Jul; Under cover 24 Apr to 29 Jul
Sweetcorn growing on a plot
Sow outdoors
22 May to 1 Jul
Under cover
24 Apr to 29 Jul
First harvest
About 106 days after sowing. Sown on 22 May, ready around 5 September.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
Sweetcorn across the UK, town by town

Roots

CarrotOutdoors 5 Apr to 2 Aug; Under cover 8 Mar to 30 Aug
Carrot growing on a plot
Sow outdoors
5 Apr to 2 Aug
Under cover
8 Mar to 30 Aug
First harvest
About 104 days after sowing. Sown on 5 April, ready around 18 July.
Warmth
Hardy: grows once days average 7°C.
Carrot across the UK, town by town
BeetrootOutdoors 5 Apr to 2 Aug; Under cover 8 Mar to 30 Aug
Beetroot growing on a plot
Sow outdoors
5 Apr to 2 Aug
Under cover
8 Mar to 30 Aug
First harvest
About 73 days after sowing. Sown on 5 April, ready around 17 June.
Warmth
Hardy: grows once days average 7°C.
Beetroot across the UK, town by town
ParsnipOutdoors 16 Mar to 8 Jun; Under cover 16 Feb to 6 Jul
Parsnip growing on a plot
Sow outdoors
16 Mar to 8 Jun
Under cover
16 Feb to 6 Jul
First harvest
About 137 days after sowing. Sown on 16 March, ready around 31 July.
Warmth
Hardy: grows once days average 6°C.
Parsnip across the UK, town by town
RadishOutdoors 16 Mar to 16 Sep; Under cover 16 Feb to 14 Oct
Radish growing on a plot
Sow outdoors
16 Mar to 16 Sep
Under cover
16 Feb to 14 Oct
First harvest
About 30 days after sowing. Sown on 16 March, ready around 15 April.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Radish across the UK, town by town
PotatoOutdoors 16 Mar to 17 May; Under cover 16 Feb to 14 Jun
Potato growing on a plot
Plant outdoors
16 Mar to 17 May
Under cover
16 Feb to 14 Jun
First harvest
About 106 days after planting. Planted on 16 March, ready around 30 June.
Warmth
Hardy: grows once days average 6°C.
Potato across the UK, town by town
TurnipOutdoors 16 Mar to 15 Aug; Under cover 16 Feb to 12 Sep
Turnip growing on a plot
Sow outdoors
16 Mar to 15 Aug
Under cover
16 Feb to 12 Sep
First harvest
About 64 days after sowing. Sown on 16 March, ready around 19 May.
Warmth
Hardy: grows once days average 6°C.
Turnip across the UK, town by town

Leaves

LettuceOutdoors 22 Mar to 10 Aug; Under cover 22 Feb to 7 Sep
Lettuce growing on a plot
Sow outdoors
22 Mar to 10 Aug
Under cover
22 Feb to 7 Sep
First harvest
About 74 days after sowing. Sown on 22 March, ready around 4 June.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Lettuce across the UK, town by town
SpinachOutdoors 16 Mar to 17 Sep; Under cover 16 Feb to 15 Oct
Spinach growing on a plot
Sow outdoors
16 Mar to 17 Sep
Under cover
16 Feb to 15 Oct
First harvest
About 49 days after sowing. Sown on 16 March, ready around 4 May.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Spinach across the UK, town by town
Swiss chardOutdoors 5 Apr to 15 Aug; Under cover 8 Mar to 12 Sep
Swiss chard growing on a plot
Sow outdoors
5 Apr to 15 Aug
Under cover
8 Mar to 12 Sep
First harvest
About 63 days after sowing. Sown on 5 April, ready around 7 June.
Warmth
Hardy: grows once days average 7°C.
Swiss chard across the UK, town by town
RocketOutdoors 16 Mar to 16 Sep; Under cover 16 Feb to 14 Oct
Rocket growing on a plot
Sow outdoors
16 Mar to 16 Sep
Under cover
16 Feb to 14 Oct
First harvest
About 43 days after sowing. Sown on 16 March, ready around 28 April.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Rocket across the UK, town by town
CeleryOutdoors 27 Feb to 6 May; Under cover 30 Jan to 3 Jun
Celery growing on a plot
Sow outdoors
27 Feb to 6 May
Under cover
30 Jan to 3 Jun
First harvest
About 141 days after sowing. Sown on 27 February, ready around 18 July.
Warmth
Hardy: grows once days average 5°C.
Celery across the UK, town by town

Beans and peas

Runner beanOutdoors 22 May to 14 Jul; Under cover 24 Apr to 11 Aug
Runner bean growing on a plot
Sow outdoors
22 May to 14 Jul
Under cover
24 Apr to 11 Aug
First harvest
About 94 days after sowing. Sown on 22 May, ready around 24 August.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
Runner bean across the UK, town by town
French beanOutdoors 22 May to 30 Jul; Under cover 24 Apr to 27 Aug
French bean growing on a plot
Sow outdoors
22 May to 30 Jul
Under cover
24 Apr to 27 Aug
First harvest
About 73 days after sowing. Sown on 22 May, ready around 3 August.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
French bean across the UK, town by town
Broad beanOutdoors 29 Sep to 22 Nov; Under cover 1 Sep to 20 Dec
Broad bean growing on a plot
Sow outdoors
29 Sep to 22 Nov
Under cover
1 Sep to 20 Dec
First harvest
About 220 days after sowing. Sown on 29 September, ready around 7 May.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Broad bean across the UK, town by town
PeaOutdoors 16 Mar to 25 Jun; Under cover 16 Feb to 23 Jul
Pea growing on a plot
Sow outdoors
16 Mar to 25 Jun
Under cover
16 Feb to 23 Jul
First harvest
About 85 days after sowing. Sown on 16 March, ready around 9 June.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Pea across the UK, town by town

Onion family

OnionOutdoors 10 Mar to 6 May; Under cover 10 Feb to 3 Jun
Onion growing on a plot
Plant outdoors
10 Mar to 6 May
Under cover
10 Feb to 3 Jun
First harvest
About 149 days after planting. Planted on 10 March, ready around 6 August.
Warmth
Hardy: grows once days average 6°C.
Onion across the UK, town by town
GarlicOutdoors 29 Sep to 3 Dec; Under cover 1 Sep to 31 Dec
Garlic growing on a plot
Plant outdoors
29 Sep to 3 Dec
Under cover
1 Sep to 31 Dec
First harvest
About 250 days after planting. Planted on 29 September, ready around 6 June.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Garlic across the UK, town by town
LeekOutdoors 16 Mar to 14 Jul; Under cover 16 Feb to 11 Aug
Leek growing on a plot
Sow outdoors
16 Mar to 14 Jul
Under cover
16 Feb to 11 Aug
First harvest
About 158 days after sowing. Sown on 16 March, ready around 21 August.
Warmth
Hardy: grows once days average 6°C.
Leek across the UK, town by town
Spring onionOutdoors 27 Feb to 2 Sep; Under cover 30 Jan to 30 Sep
Spring onion growing on a plot
Sow outdoors
27 Feb to 2 Sep
Under cover
30 Jan to 30 Sep
First harvest
About 79 days after sowing. Sown on 27 February, ready around 17 May.
Warmth
Hardy: grows once days average 5°C.
Spring onion across the UK, town by town
ShallotOutdoors 6 Feb to 6 May; Under cover 9 Jan to 3 Jun
Shallot growing on a plot
Plant outdoors
6 Feb to 6 May
Under cover
9 Jan to 3 Jun
First harvest
About 149 days after planting. Planted on 6 February, ready around 5 July.
Warmth
Hardy: grows once days average 5°C.
Shallot across the UK, town by town

Brassicas

CabbageOutdoors 16 Mar to 2 Aug; Under cover 16 Feb to 30 Aug
Cabbage growing on a plot
Sow outdoors
16 Mar to 2 Aug
Under cover
16 Feb to 30 Aug
First harvest
About 116 days after sowing. Sown on 16 March, ready around 10 July.
Warmth
Hardy: grows once days average 6°C.
Cabbage across the UK, town by town
BroccoliOutdoors 5 Apr to 14 Jul; Under cover 8 Mar to 11 Aug
Broccoli growing on a plot
Sow outdoors
5 Apr to 14 Jul
Under cover
8 Mar to 11 Aug
First harvest
About 94 days after sowing. Sown on 5 April, ready around 8 July.
Warmth
Hardy: grows once days average 7°C.
Broccoli across the UK, town by town
CauliflowerOutdoors 16 Mar to 25 Jun; Under cover 16 Feb to 23 Jul
Cauliflower growing on a plot
Sow outdoors
16 Mar to 25 Jun
Under cover
16 Feb to 23 Jul
First harvest
About 127 days after sowing. Sown on 16 March, ready around 21 July.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Cauliflower across the UK, town by town
Brussels sproutOutdoors 16 Mar to 22 May; Under cover 16 Feb to 19 Jun
Brussels sprout growing on a plot
Sow outdoors
16 Mar to 22 May
Under cover
16 Feb to 19 Jun
First harvest
About 189 days after sowing. Sown on 16 March, ready around 21 September.
Warmth
Hardy: grows once days average 6°C.
Brussels sprout across the UK, town by town
KaleOutdoors 5 Apr to 2 Aug; Under cover 8 Mar to 30 Aug
Kale growing on a plot
Sow outdoors
5 Apr to 2 Aug
Under cover
8 Mar to 30 Aug
First harvest
About 83 days after sowing. Sown on 5 April, ready around 27 June.
Warmth
Hardy: grows once days average 7°C.
Kale across the UK, town by town
Pak choiOutdoors 20 Apr to 1 Sep; Under cover 23 Mar to 29 Sep
Pak choi growing on a plot
Sow outdoors
20 Apr to 1 Sep
Under cover
23 Mar to 29 Sep
First harvest
About 46 days after sowing. Sown on 20 April, ready around 5 June.
Warmth
Hardy: grows once days average 8°C; bolts in hot weather.
Pak choi across the UK, town by town

Herbs

BasilOutdoors 20 Apr to 2 Aug; Under cover 23 Mar to 30 Aug
Basil growing on a plot
Sow outdoors
20 Apr to 2 Aug
Under cover
23 Mar to 30 Aug
First harvest
About 63 days after sowing. Sown on 20 April, ready around 22 June.
Warmth
Tender: needs days averaging 8°C or more, and no frost.
Basil across the UK, town by town
ParsleyOutdoors 16 Mar to 16 Aug; Under cover 16 Feb to 13 Sep
Parsley growing on a plot
Sow outdoors
16 Mar to 16 Aug
Under cover
16 Feb to 13 Sep
First harvest
About 80 days after sowing. Sown on 16 March, ready around 4 June.
Warmth
Hardy: grows once days average 6°C.
Parsley across the UK, town by town
CorianderOutdoors 5 Apr to 1 Sep; Under cover 8 Mar to 29 Sep
Coriander growing on a plot
Sow outdoors
5 Apr to 1 Sep
Under cover
8 Mar to 29 Sep
First harvest
About 52 days after sowing. Sown on 5 April, ready around 27 May.
Warmth
Hardy: grows once days average 7°C; bolts in hot weather.
Coriander across the UK, town by town
ChivesOutdoors 16 Mar to 8 Jun; Under cover 16 Feb to 6 Jul
Chives growing on a plot
Sow outdoors
16 Mar to 8 Jun
Under cover
16 Feb to 6 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 5 Apr to 3 Oct; Under cover 8 Mar to 31 Oct
Mint growing on a plot
Sow outdoors
5 Apr to 3 Oct
Under cover
8 Mar to 31 Oct
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 16 Mar to 22 May; Under cover 16 Feb to 19 Jun
Strawberry growing on a plot
Plant outdoors
16 Mar to 22 May
Under cover
16 Feb to 19 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 1 Nov to 19 Jan; Under cover 4 Oct to 16 Feb
Raspberry growing on a plot
Plant outdoors
1 Nov to 19 Jan
Under cover
4 Oct to 16 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 14 Oct to 22 Dec; Under cover 16 Sep to 19 Jan
Rhubarb growing on a plot
Plant outdoors
14 Oct to 22 Dec
Under cover
16 Sep to 19 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

Questions about growing in Middlesbrough

When is the last frost in Middlesbrough?

On average around 1 April, and the first autumn frost comes around 27 November. 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 Middlesbrough?

Yes. Plant them outdoors 28 May to 25 Jun, or under cover 30 Apr to 23 Jul.

What can I sow in Middlesbrough 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 Middlesbrough. 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