Manawatu-Wanganui, New Zealand

Planting calendar for Whanganui

Last frost around 13 August, first frost around 30 June: about 321 frost-free days.

Last frost: 13 August
First frost: 30 June
Frost-free days: 321

Southern hemisphere: spring sowing is September to November, and the main harvest runs December to April.

Sow now: November

See the whole year

Under cover

Pea
Leek
Cauliflower

The year at a glance

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

Sow outdoorsSow under cover (a greenhouse or polytunnel)Months run July to June, so summer reads in one piece.

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

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors 12 Nov to 19 Dec; Under cover 15 Oct to 16 Jan

Sow outdoors: 12 Nov to 19 Dec
Under cover: 15 Oct to 16 Jan
First harvest: About 86 days after sowing. Sown on 12 November, ready around 6 February.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Tomato across New Zealand, town by town

ChilliOutdoors 10 Nov to 19 Dec; Under cover 13 Oct to 16 Jan

Sow outdoors: 10 Nov to 19 Dec
Under cover: 13 Oct to 16 Jan
First harvest: About 90 days after sowing. Sown on 10 November, ready around 8 February.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Chilli across New Zealand, town by town

Sweet pepperOutdoors 18 Nov to 27 Dec; Under cover 21 Oct to 24 Jan

Sow outdoors: 18 Nov to 27 Dec
Under cover: 21 Oct to 24 Jan
First harvest: About 83 days after sowing. Sown on 18 November, ready around 9 February.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Sweet pepper across New Zealand, town by town

AubergineOutdoors 18 Nov to 19 Dec; Under cover 21 Oct to 16 Jan

Sow outdoors: 18 Nov to 19 Dec
Under cover: 21 Oct to 16 Jan
First harvest: About 90 days after sowing. Sown on 18 November, ready around 16 February.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Aubergine across New Zealand, town by town

CourgetteOutdoors 10 Nov to 14 Jan, and 4 Feb to 25 Feb; Under cover 13 Oct to 25 Mar

Sow outdoors: 10 Nov to 14 Jan, and 4 Feb to 25 Feb
Under cover: 13 Oct to 25 Mar
First harvest: About 40 days after sowing. Sown on 10 November, ready around 20 December.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Courgette across New Zealand, town by town

CucumberOutdoors 10 Nov to 14 Jan, and 4 Feb to 18 Feb; Under cover 13 Oct to 18 Feb, and 4 Mar to 18 Mar

Sow outdoors: 10 Nov to 14 Jan, and 4 Feb to 18 Feb
Under cover: 13 Oct to 18 Feb, and 4 Mar to 18 Mar
First harvest: About 43 days after sowing. Sown on 10 November, ready around 23 December.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Cucumber across New Zealand, town by town

SquashOutdoors 10 Nov to 27 Dec; Under cover 13 Oct to 24 Jan

Sow outdoors: 10 Nov to 27 Dec
Under cover: 13 Oct to 24 Jan
First harvest: About 87 days after sowing. Sown on 10 November, ready around 5 February.
Warmth: Tender: needs days averaging 12°C or more, and no frost.

Squash across New Zealand, town by town

SweetcornOutdoors 3 Nov to 27 Dec; Under cover 6 Oct to 24 Jan

Sow outdoors: 3 Nov to 27 Dec
Under cover: 6 Oct to 24 Jan
First harvest: About 88 days after sowing. Sown on 3 November, ready around 30 January.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

Sweetcorn across New Zealand, town by town

Roots

CarrotOutdoors 14 Aug to 1 Mar; Under cover 17 Jul to 29 Mar

Sow outdoors: 14 Aug to 1 Mar
Under cover: 17 Jul to 29 Mar
First harvest: About 121 days after sowing. Sown on 14 August, ready around 13 December.
Warmth: Hardy: grows once days average 7°C.

Carrot across New Zealand, town by town

BeetrootOutdoors 14 Aug to 10 Mar; Under cover 17 Jul to 7 Apr

Sow outdoors: 14 Aug to 10 Mar
Under cover: 17 Jul to 7 Apr
First harvest: About 87 days after sowing. Sown on 14 August, ready around 9 November.
Warmth: Hardy: grows once days average 7°C.

Beetroot across New Zealand, town by town

ParsnipOutdoors 5 Jul to 4 Oct, and 4 Feb to 10 Feb; Under cover 7 Jan to 13 Jan, and 4 Feb to 10 Feb, and 4 Mar to 10 Mar, and 7 Jun to 1 Nov

Sow outdoors: 5 Jul to 4 Oct, and 4 Feb to 10 Feb
Under cover: 7 Jan to 13 Jan, and 4 Feb to 10 Feb, and 4 Mar to 10 Mar, and 7 Jun to 1 Nov
First harvest: About 78 days after sowing. Sown on 5 July, ready around 21 September.
Warmth: Hardy: grows once days average 6°C.

Parsnip across New Zealand, town by town

RadishOutdoors 20 Jul to 26 Apr; Under cover 22 Jun to 24 May

Sow outdoors: 20 Jul to 26 Apr
Under cover: 22 Jun to 24 May
First harvest: About 36 days after sowing. Sown on 20 July, ready around 25 August.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Radish across New Zealand, town by town

PotatoOutdoors 19 Jul to 13 Sep, and 4 Feb to 3 Mar; Under cover 7 Jan to 31 Mar, and 21 Jun to 11 Oct

Plant outdoors: 19 Jul to 13 Sep, and 4 Feb to 3 Mar
Under cover: 7 Jan to 31 Mar, and 21 Jun to 11 Oct
First harvest: About 69 days after planting. Planted on 19 July, ready around 26 September.
Warmth: Hardy: grows once days average 6°C.

Potato across New Zealand, town by town

TurnipOutdoors 20 Jul to 28 Mar; Under cover 22 Jun to 25 Apr

Sow outdoors: 20 Jul to 28 Mar
Under cover: 22 Jun to 25 Apr
First harvest: About 83 days after sowing. Sown on 20 July, ready around 11 October.
Warmth: Hardy: grows once days average 6°C.

Turnip across New Zealand, town by town

Leaves

LettuceOutdoors 20 Jul to 26 Mar; Under cover 22 Jun to 23 Apr

Sow outdoors: 20 Jul to 26 Mar
Under cover: 22 Jun to 23 Apr
First harvest: About 97 days after sowing. Sown on 20 July, ready around 25 October.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Lettuce across New Zealand, town by town

SpinachOutdoors 20 Jul to 9 May; Under cover 22 Jun to 6 Jun

Sow outdoors: 20 Jul to 9 May
Under cover: 22 Jun to 6 Jun
First harvest: About 61 days after sowing. Sown on 20 July, ready around 19 September.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Spinach across New Zealand, town by town

Swiss chardOutdoors 14 Aug to 28 Mar; Under cover 17 Jul to 25 Apr

Sow outdoors: 14 Aug to 28 Mar
Under cover: 17 Jul to 25 Apr
First harvest: About 75 days after sowing. Sown on 14 August, ready around 28 October.
Warmth: Hardy: grows once days average 7°C.

Swiss chard across New Zealand, town by town

RocketOutdoors 20 Jul to 4 May; Under cover 22 Jun to 1 Jun

Sow outdoors: 20 Jul to 4 May
Under cover: 22 Jun to 1 Jun
First harvest: About 54 days after sowing. Sown on 20 July, ready around 12 September.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Rocket across New Zealand, town by town

CeleryOutdoors 4 Feb to 19 Feb, and 26 Jun to 17 Sep; Under cover 7 Jan to 22 Jan, and 4 Feb to 19 Feb, and 4 Mar to 19 Mar, and 29 May to 15 Oct

Sow outdoors: 4 Feb to 19 Feb, and 26 Jun to 17 Sep
Under cover: 7 Jan to 22 Jan, and 4 Feb to 19 Feb, and 4 Mar to 19 Mar, and 29 May to 15 Oct
First harvest: About 78 days after sowing. Sown on 4 February, ready around 23 April.
Warmth: Hardy: grows once days average 5°C.

Celery across New Zealand, town by town

Beans and peas

Runner beanOutdoors 3 Nov to 14 Jan; Under cover 6 Oct to 11 Feb

Sow outdoors: 3 Nov to 14 Jan
Under cover: 6 Oct to 11 Feb
First harvest: About 83 days after sowing. Sown on 3 November, ready around 25 January.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

Runner bean across New Zealand, town by town

French beanOutdoors 3 Nov to 22 Feb; Under cover 6 Oct to 22 Mar

Sow outdoors: 3 Nov to 22 Feb
Under cover: 6 Oct to 22 Mar
First harvest: About 69 days after sowing. Sown on 3 November, ready around 11 January.
Warmth: Tender: needs days averaging 11°C or more, and no frost.

French bean across New Zealand, town by town

Broad beanOutdoors 11 Apr to 11 Jul; Under cover 14 Mar to 8 Aug

Sow outdoors: 11 Apr to 11 Jul
Under cover: 14 Mar to 8 Aug
First harvest: About 220 days after sowing. Sown on 11 April, ready around 17 November.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Broad bean across New Zealand, town by town

PeaOutdoors 19 Jul to 19 Oct, and 4 Feb to 1 Mar; Under cover 7 Jan to 29 Mar, and 21 Jun to 16 Nov

Sow outdoors: 19 Jul to 19 Oct, and 4 Feb to 1 Mar
Under cover: 7 Jan to 29 Mar, and 21 Jun to 16 Nov
First harvest: About 61 days after sowing. Sown on 19 July, ready around 18 September.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Pea across New Zealand, town by town

Onion family

OnionOutdoors 4 Feb to 16 Feb, and 15 Jun to 8 Sep; Under cover 7 Jan to 19 Jan, and 4 Feb to 16 Feb, and 4 Mar to 16 Mar, and 18 May to 6 Oct

Plant outdoors: 4 Feb to 16 Feb, and 15 Jun to 8 Sep
Under cover: 7 Jan to 19 Jan, and 4 Feb to 16 Feb, and 4 Mar to 16 Mar, and 18 May to 6 Oct
First harvest: About 84 days after planting. Planted on 4 February, ready around 29 April.
Warmth: Hardy: grows once days average 6°C.

Onion across New Zealand, town by town

GarlicOutdoors 11 Apr to 19 Jul; Under cover 14 Mar to 16 Aug

Plant outdoors: 11 Apr to 19 Jul
Under cover: 14 Mar to 16 Aug
First harvest: About 250 days after planting. Planted on 11 April, ready around 17 December.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Garlic across New Zealand, town by town

LeekOutdoors 4 Feb to 3 Nov; Under cover 7 Jan to 1 Dec

Sow outdoors: 4 Feb to 3 Nov
Under cover: 7 Jan to 1 Dec
First harvest: About 90 days after sowing. Sown on 4 February, ready around 5 May.
Warmth: Hardy: grows once days average 6°C.

Leek across New Zealand, town by town

Spring onionOutdoors 26 Jun to 9 May; Under cover all year

Sow outdoors: 26 Jun to 9 May
Under cover: all year
First harvest: About 42 days after sowing. Sown on 26 June, ready around 7 August.
Warmth: Hardy: grows once days average 5°C.

Spring onion across New Zealand, town by town

ShallotOutdoors 4 Feb to 19 Feb, and 26 Jun to 1 Oct; Under cover 7 Jan to 22 Jan, and 4 Feb to 19 Feb, and 4 Mar to 19 Mar, and 29 May to 29 Oct

Plant outdoors: 4 Feb to 19 Feb, and 26 Jun to 1 Oct
Under cover: 7 Jan to 22 Jan, and 4 Feb to 19 Feb, and 4 Mar to 19 Mar, and 29 May to 29 Oct
First harvest: About 78 days after planting. Planted on 4 February, ready around 23 April.
Warmth: Hardy: grows once days average 5°C.

Shallot across New Zealand, town by town

Brassicas

CabbageOutdoors 7 Jul to 18 Nov, and 4 Feb to 8 Mar; Under cover 7 Jan to 5 Apr, and 9 Jun to 16 Dec

Sow outdoors: 7 Jul to 18 Nov, and 4 Feb to 8 Mar
Under cover: 7 Jan to 5 Apr, and 9 Jun to 16 Dec
First harvest: About 71 days after sowing. Sown on 7 July, ready around 16 September.
Warmth: Hardy: grows once days average 6°C.

Cabbage across New Zealand, town by town

BroccoliOutdoors 14 Aug to 14 Jan, and 4 Feb to 25 Feb; Under cover 17 Jul to 25 Mar

Sow outdoors: 14 Aug to 14 Jan, and 4 Feb to 25 Feb
Under cover: 17 Jul to 25 Mar
First harvest: About 65 days after sowing. Sown on 14 August, ready around 18 October.
Warmth: Hardy: grows once days average 7°C.

Broccoli across New Zealand, town by town

CauliflowerOutdoors 15 Jul to 19 Oct, and 4 Feb to 14 Feb; Under cover 7 Jan to 17 Jan, and 4 Feb to 14 Feb, and 4 Mar to 14 Mar, and 17 Jun to 16 Nov

Sow outdoors: 15 Jul to 19 Oct, and 4 Feb to 14 Feb
Under cover: 7 Jan to 17 Jan, and 4 Feb to 14 Feb, and 4 Mar to 14 Mar, and 17 Jun to 16 Nov
First harvest: About 73 days after sowing. Sown on 15 July, ready around 26 September.
Warmth: Hardy: grows once days average 6°C; bolts in hot weather.

Cauliflower across New Zealand, town by town

Brussels sproutOutdoors 4 Feb to 18 Sep; Under cover 7 Jan to 16 Oct

Sow outdoors: 4 Feb to 18 Sep
Under cover: 7 Jan to 16 Oct
First harvest: About 108 days after sowing. Sown on 4 February, ready around 23 May.
Warmth: Hardy: grows once days average 6°C.

Brussels sprout across New Zealand, town by town

KaleOutdoors 14 Aug to 7 Mar; Under cover 17 Jul to 4 Apr

Sow outdoors: 14 Aug to 7 Mar
Under cover: 17 Jul to 4 Apr
First harvest: About 99 days after sowing. Sown on 14 August, ready around 21 November.
Warmth: Hardy: grows once days average 7°C.

Kale across New Zealand, town by town

Pak choiOutdoors 14 Sep to 12 Apr; Under cover 17 Aug to 10 May

Sow outdoors: 14 Sep to 12 Apr
Under cover: 17 Aug to 10 May
First harvest: About 51 days after sowing. Sown on 14 September, ready around 4 November.
Warmth: Hardy: grows once days average 8°C; bolts in hot weather.

Pak choi across New Zealand, town by town

Herbs

BasilOutdoors 14 Sep to 27 Feb; Under cover 17 Aug to 27 Mar

Sow outdoors: 14 Sep to 27 Feb
Under cover: 17 Aug to 27 Mar
First harvest: About 76 days after sowing. Sown on 14 September, ready around 29 November.
Warmth: Tender: needs days averaging 8°C or more, and no frost.

Basil across New Zealand, town by town

ParsleyOutdoors 20 Jul to 7 Apr; Under cover 22 Jun to 5 May

Sow outdoors: 20 Jul to 7 Apr
Under cover: 22 Jun to 5 May
First harvest: About 103 days after sowing. Sown on 20 July, ready around 31 October.
Warmth: Hardy: grows once days average 6°C.

Parsley across New Zealand, town by town

CorianderOutdoors 14 Aug to 15 Apr; Under cover 17 Jul to 13 May

Sow outdoors: 14 Aug to 15 Apr
Under cover: 17 Jul to 13 May
First harvest: About 62 days after sowing. Sown on 14 August, ready around 15 October.
Warmth: Hardy: grows once days average 7°C; bolts in hot weather.

Coriander across New Zealand, town by town

ChivesOutdoors 19 Jul to 4 Oct, and 4 Feb to 5 Mar; Under cover 7 Jan to 2 Apr, and 21 Jun to 1 Nov

Sow outdoors: 19 Jul to 4 Oct, and 4 Feb to 5 Mar
Under cover: 7 Jan to 2 Apr, and 21 Jun to 1 Nov
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 6°C.

Chives across New Zealand, town by town

MintOutdoors 14 Aug to 25 Jun; Under cover all year

Sow outdoors: 14 Aug to 25 Jun
Under cover: all year
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 7°C.

Mint across New Zealand, town by town

Fruit

StrawberryOutdoors 19 Jul to 18 Sep, and 4 Feb to 7 Mar; Under cover 7 Jan to 4 Apr, and 21 Jun to 16 Oct

Plant outdoors: 19 Jul to 18 Sep, and 4 Feb to 7 Mar
Under cover: 7 Jan to 4 Apr, and 21 Jun to 16 Oct
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 6°C.

Strawberry across New Zealand, town by town

RaspberryOutdoors 24 May to 19 Jul; Under cover 26 Apr to 16 Aug

Plant outdoors: 24 May to 19 Jul
Under cover: 26 Apr to 16 Aug
First harvest: Crops every year once it’s established.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Raspberry across New Zealand, town by town

RhubarbNot here: winters too mild here

Plant outdoors: Not here: winters too mild here
Under cover: No
First harvest: Crops every year once it’s established.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Rhubarb across New Zealand, town by town

Nearby

Questions about growing in Whanganui

When is the last frost in Whanganui?

On average around 13 August, and the first autumn frost comes around 30 June. 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 Whanganui?

Yes. Plant them outdoors 12 Nov to 19 Dec, or under cover 15 Oct to 16 Jan.

What can I sow in Whanganui in November?

Outdoors: tomato, chilli, sweet pepper, aubergine, courgette, cucumber, squash, sweetcorn, carrot, beetroot, radish, turnip, lettuce, spinach, Swiss chard, rocket, runner bean, French bean, spring onion, cabbage, broccoli, kale, pak choi, basil, parsley, coriander, mint. Under cover: pea, leek, cauliflower.

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 Whanganui. 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