When to plant tomatoes in Las Vegas: 13 March – 22 August

In Las Vegas, tomato: sow for seedlings from 30 December to 1 July; plant into a greenhouse from 20 February to 22 August; plant out into open ground from 13 March to 22 August. For plants and seeds, the places nearby include Desert Living Center (garden centre, 5 km) and Proficient Patios & Backyard Designs (garden centre, 6 km); addresses and opening hours are below.

Tomato 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 15 °C — the minimum on the tomato card — only around 13 March, 35 days later.

Last spring frost	6 February
Top 7 cm of soil at 15 °C	13 March, 35 days after the last frost
Into an unheated greenhouse	20 February – 22 August; February outside: 5.5 °C at night, 16.5 °C by day; card 16–27 °C
First autumn frost	12 December, 274 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	22 May – 31 October
Days left for picking	204
Daylight	10:04 on 20 January, 11:51 on 13 March
Watering outdoors when fruiting (card)	every 3 days; the driest month, June, has 0 rainy days

Tomato in Las Vegas: care after planting

Planted on 13 March: in the first weeks water every 4 days.

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

13 March — feed: balanced (NPK)
10 April — feed: nitrogen

Pests and diseases of tomato 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 tomato season

Days average above the tomato card's 16–27 °C in May–September (30.6–40.1 °C). Months that stay below 16 °C even by day on average: December (13.8 °C). Nights average below 16 °C in March, April and October–December (4.8–14.5 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	20.2	8.5	21	4	11:55
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

Tomato in nearby cities

Around Las Vegas, Phoenix is 30 days earlier and Flagstaff 60 days later.

City	Distance	Date	Difference
Riverside	321 km	24 February – 29 August	17 days earlier
Flagstaff	336 km	12 May – 1 July	60 days later
Bakersfield	361 km	16 March – 24 August	3 days later
Phoenix	412 km	11 February – 8 September	30 days earlier
Fresno	419 km	15 March – 15 August	2 days later
Santa Barbara	457 km	11 April – 25 August	29 days later

Where to buy tomato plants and seeds near Las Vegas

Buy plants ready to set out from 13 March to 22 August (from 20 February to 22 August for an unheated greenhouse); seed for raising your own is sown from 30 December to 1 July. Within 15 km of Las Vegas OpenStreetMap lists 10 garden centres, 1 plant nursery and 1 market (collected 20 October 2026).

Star Nursery Garden Center — garden centre
West Charleston Boulevard 8170, 89117 Las Vegas · Mon–Sun 07:00–17:00 · 12 km · starnursery.com
Whiting Brothers Rock City — garden centre
Vegas Valley Drive 6418, 89142 Las Vegas · 10 km · whitingbrothersrockcity.com
Desert Living Center — garden centre
South Valley View Boulevard 333, 89107 Las Vegas · 5 km
Proficient Patios & Backyard Designs — garden centre
South Valley View Boulevard 3310, 89102 Las Vegas · 6 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