When to plant tomatoes in Wellington: from 22 November
In Wellington, tomato: sow for seedlings from 10 September; plant into a greenhouse from 1 November; plant out into open ground from 22 November. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Red Barn Supply Company (farm supply, 9 km); addresses and opening hours are below.
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Tomato in Wellington: soil, season and weather
In Wellington the soil, not frost, sets the date: the last frost is over around 17 August, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 22 November, 97 days later. Wellington has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 17 August |
|---|---|
| Top 7 cm of soil at 15 °C | 22 November, 97 days after the last frost |
| Into an unheated greenhouse | from 1 November; November outside: 10.4 °C at night, 15.3 °C by day; card 16–27 °C |
| Days in the bed to the first harvest (card) | 70 |
| First harvest, if planted in this window | from 31 January |
| Daylight | 12:30 on 1 October, 14:40 on 22 November |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, January, has 8 rainy days |
Tomato in Wellington: care after planting
Planted on 22 November: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 22 November — feed: balanced (NPK)
- 20 December — feed: nitrogen
Pests and diseases of tomato to watch for:
- Bacterial canker of tomato
- Tomato leaf mould
- Late Blight
- Bacterial spot
- Fruit cracking
- Bacterial wilt (brown rot of potato)
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in Wellington during the tomato season
No month of the season averages above the tomato card's 16–27 °C by day; the warmest, January, averages 18.7 °C. Months that stay below 16 °C even by day on average: November (15.3 °C) and April (15.2 °C). Nights average below 16 °C in every month of the season, from 10.4 °C to 13.1 °C.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| November | 15.3 | 10.4 | 91 | 12 | 14:26 |
| December | 17.1 | 11.9 | 95 | 13 | 15:08 |
| January | 18.7 | 13 | 45 | 8 | 14:49 |
| February | 18.7 | 13.1 | 82 | 8 | 13:41 |
| March | 17.1 | 12.1 | 79 | 9 | 12:25 |
| April | 15.2 | 10.4 | 104 | 10 | 11:00 |
ERA5 2016–2025, Open-Meteo
Tomato in nearby cities
Around Wellington, Napier is 42 days earlier and Rotorua 4 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Blenheim | 73 km | 30 October – 8 February | 23 days earlier |
| Palmerston North | 125 km | 29 October – 29 February | 24 days earlier |
| Nelson | 125 km | 11 November – 29 February | 11 days earlier |
| Napier | 269 km | from 11 October | 42 days earlier |
| Christchurch | 305 km | 30 October – 13 February | 23 days earlier |
| Rotorua | 372 km | 26 November – 3 February | 4 days later |
Where to buy tomato plants and seeds near Wellington
Buy plants ready to set out from 22 November (from 1 November for an unheated greenhouse); seed for raising your own is sown from 10 September. Within 15 km of Wellington OpenStreetMap lists 2 garden centres, 1 farm-supply shop, 2 plant nurseries and 3 markets (collected 20 October 2026).
- Red Barn Supply Company — farm supply
Takarau Gorge Road 106, 6037 Wellington · 9 km · redbarnsupply.co - Harbourside Market — market
Cable Street 75, 6011 Wellington · Sun 07:30–13:00 · 0 km - Newtown Fruit & Vegetables Market — market
Mein Street, 6021 Newtown, Wellington · Sat 07:00–14:00 · 2 km - Riverbank Market — market
Sat 06:00–14:00 · 14 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow tomato
- All frost dates and weather of Wellington
- Shops and markets: Wellington
- Selling a surplus in New Zealand
- When to plant tomatoes in New Zealand
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant tomatoes in Wellington?
In Wellington, tomato: sow for seedlings from 10 September; plant into a greenhouse from 1 November; plant out into open ground from 22 November. There is no autumn frost here, so the frost dates set no end to the window.
When to sow tomatoes for seedlings in Wellington?
Sow for seedlings from 10 September.