GreenlyWhen to plant peas in Blenheim: 20 July – 17 March
In Blenheim, peas: sow straight into the bed from 20 July to 17 March. For seeds, the places nearby include Golden Mile Produce (farm shop, 6 km); addresses and opening hours are below.
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Peas in Blenheim: soil, season and weather
Peas tolerates light frost, so it goes in three weeks before the last frost (10 August); the top 7 cm of soil averages its minimum of 4 °C already in the first week of July.
| Last spring frost | 10 August |
|---|---|
| Top 7 cm of soil at 4 °C | already in the first week of July |
| First autumn frost | 30 May, 315 days after the start |
| Days in the bed to the first harvest (card) | 74 |
| First harvest, if planted in this window | 2 October – 30 May |
| Days left for picking | 241 |
| Daylight | 9:33 on 20 July |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, January, has 7 rainy days |
Peas in Blenheim: care after planting
Planted on 20 July: in the first weeks water every 6 days.
Pests and diseases of peas to watch for:
Weather in Blenheim during the peas season
About 773 mm of rain falls in the season; January is the driest month (50 mm) and July the wettest (92 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| July | 12.7 | 5.3 | 92 | 10 | 9:26 |
| August | 13.5 | 5.5 | 73 | 10 | 10:26 |
| September | 15.3 | 7.2 | 67 | 10 | 11:47 |
| October | 17.8 | 8.8 | 71 | 11 | 13:09 |
| November | 19.9 | 11 | 69 | 11 | 14:27 |
| December | 21.8 | 12.9 | 78 | 10 | 15:09 |
| January | 23.3 | 14 | 50 | 7 | 14:51 |
| February | 23 | 13.8 | 65 | 6 | 13:42 |
| March | 21.1 | 12.3 | 61 | 8 | 12:25 |
| April | 18.3 | 10.2 | 75 | 7 | 11:00 |
| May | 15.7 | 8.2 | 72 | 9 | 9:50 |
ERA5 2016–2025, Open-Meteo
Peas in nearby cities
Around Blenheim, Napier is 10 days earlier and Timaru 43 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Nelson | 63 km | 14 July – 7 April | 6 days earlier |
| Wellington | 73 km | from 27 July | 7 days later |
| Palmerston North | 189 km | 21 July – 7 April | 1 day later |
| Christchurch | 249 km | 20 July – 22 March | same day |
| Napier | 336 km | from 10 July | 10 days earlier |
| Timaru | 389 km | 1 September – 21 March | 43 days later |
Where to buy peas seeds in Blenheim
Seeds go straight into the bed from 20 July to 17 March; buy them before that. Within 15 km of Blenheim OpenStreetMap lists 1 market and 1 farm shop (collected 28 October 2026).
- Marlborough Farmers' Market — market
Maxwell Road · Sun 09:00–12:00 · 2 km - Golden Mile Produce — farm shop
Sat 14:00–18:00 · 6 km
Places: © OpenStreetMap contributors, ODbL.
Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.
- How to grow peas
- All frost dates and weather of Blenheim
- Shops and markets: Blenheim
- Selling a surplus in New Zealand
- When to plant peas in New Zealand
- Blenheim: #135 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant peas in Blenheim?
In Blenheim, peas: sow straight into the bed from 20 July to 17 March.
When is the last spring frost in Blenheim?
Last spring frost around 10 August, first autumn frost around 31 May.
Other crops in Blenheim, with their dates
- Tomato · 30 October – 8 February
- Cucumber · 11 December – 15 March
- Bell Pepper · 11 December – 8 February
- Eggplant · 11 December – 8 February
- Zucchini · 11 December – 13 March
- Pumpkin · 11 December – 3 February
- Watermelon · 11 December – 19 February
- Garlic · 1 May – end of June
- Tulip · by 1 May
- Daffodil · by 1 May
- Crocus · by 1 May
- Hyacinth · by 1 May
