When to plant cucumbers in Las Vegas: 1 April – 27 September

In Las Vegas, cucumber: sow for seedlings from 11 February to 30 August; plant into a greenhouse from 11 March to 27 September; plant out into open ground from 1 April to 27 September. For plants and seeds, the places nearby include Star Nursery (plant nursery, 10 km); addresses and opening hours are below.

Cucumber in Las Vegas: soil, season and weather

In Las Vegas the soil, not frost, sets the date: the last frost is over around 6 February, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 1 April, 54 days later.

Last spring frost	6 February
Top 7 cm of soil at 18 °C	1 April, 54 days after the last frost
Into an unheated greenhouse	11 March – 27 September; March outside: 8.5 °C at night, 20.2 °C by day; card 18–25 °C
First autumn frost	12 December, 255 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	5 May – 31 October
Days left for picking	221
Daylight	11:30 on 4 March, 12:34 on 1 April
Watering outdoors when fruiting (card)	every 2 days; the driest month, June, has 0 rainy days

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

Cucumber in Las Vegas: care after planting

Planted on 1 April: in the first weeks water every 4 days.

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

8 April — 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 Las Vegas during the cucumber season

Days average above the cucumber card's 18–35 °C in June (37.5 °C), July (40.1 °C) and August (38.5 °C). Months that stay below 18 °C even by day on average: December (13.8 °C). Nights average below 18 °C in April, May and October–December (4.8–16.8 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	26.5	13.2	5	2	13:06
May	30.6	16.8	8	2	14:04
June	37.5	23	2	0	14:36
July	40.1	26.4	8	2	14:24
August	38.5	25.1	14	2	13:34
September	34.2	21.2	8	1	12:27
October	27	14.5	8	1	11:19
November	19	8.6	14	2	10:16
December	13.8	4.8	19	3	9:43

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Las Vegas, Phoenix is 37 days earlier and Santa Barbara 43 days later.

City	Distance	Date	Difference
Riverside	321 km	2 April – 4 October	1 day later
Flagstaff	336 km	12 May – 6 August	41 days later
Bakersfield	361 km	2 April – 29 September	1 day later
Phoenix	412 km	23 February – 14 October	37 days earlier
Fresno	419 km	10 April – 20 September	9 days later
Santa Barbara	457 km	14 May – 30 September	43 days later

Where to buy cucumber plants and seeds near Las Vegas

Buy plants ready to set out from 1 April to 27 September (from 11 March to 27 September for an unheated greenhouse); seed for raising your own is sown from 11 February to 30 August. Within 15 km of Las Vegas OpenStreetMap lists 10 garden centres, 1 plant nursery and 1 market (collected 20 October 2026).

Star Nursery — plant nursery
Boulder Highway 5340, 89122 Las Vegas · 10 km · starnursery.com
Yafa Market — market
East Charleston Boulevard 1155 · 1 km
Garden Store — garden centre
2 km
Home Depot Garden Center — garden centre
15 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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