When to plant cucumbers in Pueblo: 3 May – 13 August

In Pueblo, cucumber: sow for seedlings from 15 March to 16 July; plant into a greenhouse from 12 April to 13 August; plant out into open ground from 3 May to 13 August. For plants and seeds, the places nearby include Musso Farms (farm shop, 13 km) and Mauro Farms Market & Bakery (farm shop, 13 km); addresses and opening hours are below.

Cucumber in Pueblo: soil, season and weather

In Pueblo the soil, not frost, sets the date: the last frost is over around 21 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 3 May, 12 days later.

Last spring frost	21 April
Top 7 cm of soil at 18 °C	3 May, 12 days after the last frost
Into an unheated greenhouse	12 April – 13 August; April outside: 3.8 °C at night, 21.1 °C by day; card 18–25 °C
First autumn frost	28 October, 178 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	6 June – 16 September
Days left for picking	144
Daylight	12:46 on 5 April, 13:51 on 3 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, September, has 2 rainy days

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

Cucumber in Pueblo: care after planting

Planted on 3 May: in the first weeks water every 4 days.

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

10 May — 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 Pueblo during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, July, averages 33.9 °C. Nights average below 18 °C in May, June and August–October (6.1–17.7 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	25	8.9	55	8	14:14
June	32.1	15.6	32	6	14:49
July	33.9	18.5	48	7	14:35
August	32.7	17.7	33	6	13:41
September	30.1	13.7	14	2	12:28
October	22	6.1	16	3	11:15

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

1 of the nearest cities share Pueblo's date.

City	Distance	Date	Difference
Colorado Springs	66 km	6 June – 31 July	34 days later
Denver	168 km	28 May – 31 July	25 days later
Fort Collins	258 km	7 June – 6 August	35 days later
Santa Fe (United States)	309 km	3 May – 11 August	same day
Cheyenne	321 km	8 June – 29 July	36 days later
Grand Junction	356 km	6 May – 12 August	3 days later

Where to buy cucumber plants and seeds near Pueblo

Buy plants ready to set out from 3 May to 13 August (from 12 April to 13 August for an unheated greenhouse); seed for raising your own is sown from 15 March to 16 July. Within 15 km of Pueblo OpenStreetMap lists 4 garden centres, 3 farm-supply shops, 2 markets and 3 farm shops (collected 28 October 2026).

Musso Farms — farm shop
Hillside Road 35779, 81006 Pueblo · Mon–Sat 08:00–18:00 · 13 km · mussofarmschileroom.com
Mauro Farms Market & Bakery — farm shop
36th Lane 936, 81006 Pueblo · Mon–Sun 09:00–16:00 · 13 km · maurofarms.com
DiTomaso Farms — farm shop
US 50 Bus 37137, 81006 Pueblo · Mon–Sun 08:00–17:00 · 14 km · facebook.com
Walmart Garden Center — garden centre
6 km · walmart.com

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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