Greenly Garden

When to plant zucchini in Norwich: 27 June – 11 September

In Norwich, zucchini: sow for seedlings from 16 May to 21 August; plant into a greenhouse from 6 June to 11 September; plant out into open ground from 27 June to 11 September. For plants and seeds, the places nearby include City Farm Shop (farm shop, 2 km) and Church Farm Shop and Tea Room (farm shop, 8 km); addresses and opening hours are below.

Zucchini in Norwich: soil, season and weather

In Norwich the soil, not frost, sets the date: the last frost is over around 31 March, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 27 June, 88 days later.

Last spring frost31 March
Top 7 cm of soil at 18 °C27 June, 88 days after the last frost
First autumn frost28 November, 154 days after the start
Days in the bed to the first harvest (card)36
First harvest, if planted in this window2 August – 17 October
Days left for picking118
Daylight16:39 on 6 June, 16:50 on 27 June
Watering outdoors when fruiting (card)every 3 days; the driest month, August, has 11 rainy days

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

Zucchini in Norwich: care after planting

Planted on 27 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Norwich during the zucchini season

About 396 mm of rain falls in the season; August is the driest month (55 mm) and October the wettest (76 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
June19.611.3661216:49
July21.513731316:24
August21.613.3551114:46
September1911.3631012:44
October14.98.7761310:42
November10.45.163118:46

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

1 of the nearest cities share Norwich's date.

CityDistanceDateDifference
Ipswich64 km14 June – 12 September13 days earlier
Cambridge93 km17 June – 7 September10 days earlier
Lincoln (United Kingdom)140 km25 June – 2 September2 days earlier
London158 km12 June – 6 September15 days earlier
Leicester164 km21 June – 2 September6 days earlier
Hull165 km27 June – 7 Septembersame day

Where to buy zucchini plants and seeds near Norwich

Buy plants ready to set out from 27 June to 11 September (from 6 June to 11 September for an unheated greenhouse); seed for raising your own is sown from 16 May to 21 August. Within 15 km of Norwich OpenStreetMap lists 20 garden centres, 1 farm-supply shop, 1 plant nursery, 1 market and 14 farm shops (collected 20 October 2026).

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.

Questions

When to plant zucchini in Norwich?

In Norwich, zucchini: sow for seedlings from 16 May to 21 August; plant into a greenhouse from 6 June to 11 September; plant out into open ground from 27 June to 11 September.

When to sow zucchini for seedlings in Norwich?

Sow for seedlings from 16 May to 21 August.

When is the last spring frost in Norwich?

Last spring frost around 31 March, first autumn frost around 28 November.

Other crops in Norwich, with their dates