When to plant eggplants in Fort Smith: 1 May – 29 July

In Fort Smith, eggplant: sow for seedlings from 9 February to 30 May; plant into a greenhouse from 10 April to 29 July; plant out into open ground from 1 May to 29 July.

Eggplant in Fort Smith: soil, season and weather

In Fort Smith the soil, not frost, sets the date: the last frost is over around 16 March, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 1 May, 46 days later.

Last spring frost	16 March
Top 7 cm of soil at 18 °C	1 May, 46 days after the last frost
Into an unheated greenhouse	10 April – 29 July; April outside: 10.7 °C at night, 22 °C by day; card 21–29 °C
First autumn frost	18 November, 201 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	10 July – 7 October
Days left for picking	131
Daylight	11:26 on 2 March, 13:36 on 1 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 6 rainy days

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

Eggplant in Fort Smith: care after planting

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

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

1 May — feed: balanced (NPK)
29 May — 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 Smith during the eggplant season

Days average above the eggplant card's 21–29 °C in June–September (30.3–33.5 °C). Months that stay below 21 °C even by day on average: November (17.1 °C). Nights average below 21 °C in May, June and September–November (6.5–20.8 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	26.3	15.9	151	13	14:01
June	31.5	20.8	95	11	14:32
July	33.5	23.2	91	10	14:20
August	32.6	22.4	88	9	13:31
September	30.3	19.4	73	6	12:26
October	24	13.2	113	8	11:20
November	17.1	6.5	91	8	10:19

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Fort Smith, Shreveport is 42 days earlier and Fayetteville 8 days later.

City	Distance	Date	Difference
Fayetteville	78 km	9 May – 21 July	8 days later
Tulsa	169 km	29 April – 28 July	2 days earlier
Joplin	189 km	5 May – 12 July	4 days later
Little Rock	203 km	22 April – 31 July	9 days earlier
Oklahoma City	285 km	15 April – 21 July	16 days earlier
Shreveport	329 km	20 March – 19 August	42 days earlier

Where to buy eggplant plants and seeds near Fort Smith

Buy plants ready to set out from 1 May to 29 July (from 10 April to 29 July for an unheated greenhouse); seed for raising your own is sown from 9 February to 30 May. Within 15 km of Fort Smith OpenStreetMap lists 1 garden centre and 1 plant nursery (collected 28 October 2026).

Home Depot Garden Center — garden centre
4 km
Lafoon's Greenhouse & Nursery — plant nursery
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