When to plant cucumbers in Norwich: 27 June – 13 September

In Norwich, cucumber: sow for seedlings from 9 May to 16 August; plant into a greenhouse from 6 June to 13 September; plant out into open ground from 27 June to 13 September. For plants and seeds, the places nearby include Fiddle Leaf (garden centre, 2 km) and Norwich Heather & Conifer Centre (garden centre, 3 km); addresses and opening hours are below.

Cucumber 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 cucumber card — only around 27 June, 88 days later.

Last spring frost	31 March
Top 7 cm of soil at 18 °C	27 June, 88 days after the last frost
Into an unheated greenhouse	6 June – 13 September; June outside: 11.3 °C at night, 19.6 °C by day; card 18–25 °C
First autumn frost	28 November, 154 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	31 July – 17 October
Days left for picking	120
Daylight	16:26 on 30 May, 16:50 on 27 June
Watering outdoors when fruiting (card)	every 2 days; the driest month, August, has 11 rainy days

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

Cucumber in Norwich: care after planting

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

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

4 July — 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 Norwich during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 21.6 °C. Months that stay below 18 °C even by day on average: October (14.9 °C) and November (10.4 °C). Nights average below 18 °C in every month of the season, from 5.1 °C to 13.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	19.6	11.3	66	12	16:49
July	21.5	13	73	13	16:24
August	21.6	13.3	55	11	14:46
September	19	11.3	63	10	12:44
October	14.9	8.7	76	13	10:42
November	10.4	5.1	63	11	8:46

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

1 of the nearest cities share Norwich's date.

City	Distance	Date	Difference
Ipswich	64 km	14 June – 14 September	13 days earlier
Cambridge	93 km	17 June – 9 September	10 days earlier
Lincoln (United Kingdom)	140 km	25 June – 4 September	2 days earlier
London	158 km	12 June – 8 September	15 days earlier
Leicester	164 km	21 June – 4 September	6 days earlier
Hull	165 km	27 June – 9 September	same day

Where to buy cucumber plants and seeds near Norwich

Buy plants ready to set out from 27 June to 13 September (from 6 June to 13 September for an unheated greenhouse); seed for raising your own is sown from 9 May to 16 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).

Taverham Nursery Centre — garden centre
Fir Covert Road, NR8 6HT Norwich · Mon–Fri 08:00–17:00 · 10 km · taverhamnursery.co.uk
Norwich Heather & Conifer Centre — garden centre
Yarmouth Road 54A, NR7 0HE Norwich · 3 km · heatherandconifer.wixsite.com
Highway Garden and Leisure — garden centre
Loddon Road, NR14 7PW Norwich · Mon–Sat, public holidays 09:00–17:00; Sun 10:30–16:30 · 7 km · highwaygardencentre.co.uk
Fiddle Leaf — garden centre
Newmarket Street 43 · Mon, Wed–Fri 10:30–18:30; Sat 10:30–17:00; Sun 10:30–15:30 · 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.

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