When to plant zucchini in Palmerston North: 4 December – 3 April

In Palmerston North, zucchini: sow for seedlings from 23 October to 13 March; plant into a greenhouse from 13 November to 3 April; plant out into open ground from 4 December to 3 April.

Zucchini in Palmerston North: soil, season and weather

In Palmerston North the soil, not frost, sets the date: the last frost is over around 11 August, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 4 December, 115 days later.

Last spring frost	11 August
Top 7 cm of soil at 18 °C	4 December, 115 days after the last frost
First autumn frost	20 June, 199 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	9 January – 9 May
Days left for picking	163
Daylight	14:17 on 13 November, 14:53 on 4 December
Watering outdoors when fruiting (card)	every 3 days; the driest month, January, has 10 rainy days

The same dates in Palmerston North hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Palmerston North: care after planting

Planted on 4 December: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Palmerston North during the zucchini season

About 655 mm of rain falls in the season; January is the driest month (80 mm) and December the wettest (124 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
December	21.4	13.3	124	14	15:02
January	22.9	14.4	80	10	14:44
February	23.3	14.2	80	8	13:38
March	21.1	12.6	81	10	12:24
April	18.7	10.7	96	11	11:02
May	16.2	8.8	105	13	9:55
June	14	7.2	89	12	9:18

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Palmerston North, Napier is 31 days earlier and Nelson 16 days later.

City	Distance	Date	Difference
Wellington	125 km	from 17 December	13 days later
Napier	147 km	from 3 November	31 days earlier
Blenheim	189 km	11 December – 13 March	7 days later
Nelson	221 km	20 December – 3 April	16 days later
Rotorua	253 km	10 December – 8 March	6 days later
Gisborne	280 km	from 7 November	27 days earlier

Where to buy zucchini plants and seeds near Palmerston North

Buy plants ready to set out from 4 December to 3 April (from 13 November to 3 April for an unheated greenhouse); seed for raising your own is sown from 23 October to 13 March. Within 15 km of Palmerston North OpenStreetMap lists 2 garden centres, 1 farm-supply shop, 1 plant nursery and 1 market (collected 20 October 2026).

Oderings — garden centre
1 km
Awapuni Nurseries — plant nursery
5 km
Farmlands — farm supply
2 km
Albert Street Market (Saturday) — market
2 km

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.

Questions