When to plant cucumbers in Rotorua: 10 December – 10 March

In Rotorua, cucumber: sow for seedlings from 22 October to 11 February; plant into a greenhouse from 19 November to 10 March; plant out into open ground from 10 December to 10 March.

Cucumber in Rotorua: soil, season and weather

In Rotorua the soil, not frost, sets the date: the last frost is over around 10 September, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 10 December, 91 days later.

Last spring frost	10 September
Top 7 cm of soil at 18 °C	10 December, 91 days after the last frost
Into an unheated greenhouse	19 November – 10 March; November outside: 9.6 °C at night, 19 °C by day; card 18–25 °C
First autumn frost	25 May, 167 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	13 January – 13 April
Days left for picking	133
Daylight	14:05 on 12 November, 14:45 on 10 December
Watering outdoors when fruiting (card)	every 2 days; the driest month, January, has 12 rainy days

The same dates in Rotorua hold for Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Rotorua: care after planting

Planted on 10 December: in the first weeks water every 4 days.

Feeding, by the card’s schedule from that day:

17 December — feed: nitrogen

Pests and diseases of cucumber to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Rotorua during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, February, averages 22.8 °C. Months that stay below 18 °C even by day on average: April (17.3 °C) and May (14.3 °C). Nights average below 18 °C in every month of the season, from 6.4 °C to 12.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
December	21.3	11.5	113	14	14:48
January	22.7	12.3	89	12	14:31
February	22.8	12.8	104	11	13:31
March	20.3	10.8	94	11	12:23
April	17.3	8.9	91	10	11:07
May	14.3	6.4	107	10	10:05

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Rotorua, Napier is 37 days earlier and Wellington 7 days later.

City	Distance	Date	Difference
Tauranga	51 km	from 4 December	6 days earlier
Hamilton (New Zealand)	94 km	3 December – 30 March	7 days earlier
Napier	161 km	from 3 November	37 days earlier
Gisborne	165 km	from 7 November	33 days earlier
Palmerston North	253 km	4 December – 5 April	6 days earlier
Wellington	372 km	from 17 December	7 days later

Where to buy cucumber plants and seeds near Rotorua

Buy plants ready to set out from 10 December to 10 March (from 19 November to 10 March for an unheated greenhouse); seed for raising your own is sown from 22 October to 11 February. Within 15 km of Rotorua OpenStreetMap lists 4 garden centres, 3 farm-supply shops, 1 plant nursery and 4 markets (collected 20 October 2026).

Rotorua Lakes Council Nursery — plant nursery
1 km
Farmlands Rotorua — farm supply
1 km
Farm Source Rotorua — farm supply
1 km
PGG Wrightson — farm supply
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