When to plant eggplants in Fort Collins: 7 June – 1 July

In Fort Collins, eggplant: sow for seedlings from 18 March to 2 May; plant into a greenhouse from 17 May to 1 July; plant out into open ground from 7 June to 1 July. For plants and seeds, the places nearby include Ent Wise Farm (farm shop, 9 km); addresses and opening hours are below.

Eggplant in Fort Collins: soil, season and weather

In Fort Collins the soil, not frost, sets the date: the last frost is over around 25 April, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 7 June, 43 days later.

Last spring frost	25 April
Top 7 cm of soil at 18 °C	7 June, 43 days after the last frost
Into an unheated greenhouse	17 May – 1 July; May outside: 6.4 °C at night, 21.1 °C by day; card 21–29 °C
First autumn frost	21 October, 136 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	16 August – 9 September
Days left for picking	66
Daylight	12:58 on 8 April, 14:58 on 7 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, October, has 4 rainy days

The same dates in Fort Collins hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant in Fort Collins: care after planting

Planted on 7 June: in the first weeks water every 4 days.

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

7 June — feed: balanced (NPK)
5 July — feed: nitrogen

Pests and diseases of eggplant 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 Fort Collins during the eggplant season

Days average above the eggplant card's 21–29 °C in July (31.6 °C) and August (30.5 °C). Months that stay below 21 °C even by day on average: October (18.8 °C). Nights average below 21 °C in every month of the season, from 3.8 °C to 16.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	28.4	12.7	40	8	15:03
July	31.6	16.2	37	7	14:48
August	30.5	15.2	34	7	13:49
September	27.7	11.2	22	4	12:30
October	18.8	3.8	20	4	11:11

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Fort Collins, Pueblo is 35 days earlier and Cheyenne 1 day later.

City	Distance	Date	Difference
Cheyenne	69 km	8 June – 23 June	1 day later
Denver	90 km	28 May – 25 June	10 days earlier
Colorado Springs	192 km	6 June – 25 June	1 day earlier
Pueblo	258 km	3 May – 8 July	35 days earlier
Grand Junction	340 km	6 May – 7 July	32 days earlier
Rapid City	420 km	6 June – 22 June	1 day earlier

Where to buy eggplant plants and seeds near Fort Collins

Buy plants ready to set out from 7 June to 1 July (from 17 May to 1 July for an unheated greenhouse); seed for raising your own is sown from 18 March to 2 May. Within 15 km of Fort Collins OpenStreetMap lists 10 garden centres, 4 farm-supply shops, 2 plant nurseries, 3 markets and 6 farm shops (collected 28 October 2026).

Drake Road Farmers Market — market
West Drake Road 802, Fort Collins · Jun–Oct Sat 10:00–13:00 · 2 km · drakeroadfarmersmarket.com
Fort Collins and Loveland Farmers’ Market — market
East Harmony Road 1001, 80525 Fort Collins · May 03–Nov 08: Sun 10:00–14:00; Jun 03–Sept 30: Wed 10:00–14:00; public holidays closed · 3 km · fortcollinsfm.com
Larimer County Farmers Market — market
West Oak Street 200, Fort Collins · Jun–Oct: Sat 06:00–12:00 · 4 km · larimercountyfarmersmarket.org
Ent Wise Farm — farm shop
S Timberline Rd 8101, 80525 Fort Collins · 9 km · entwisefarm.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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