When to plant eggplants in Indianapolis: 16 May – 17 July

In Indianapolis, eggplant: sow for seedlings from 24 February to 18 May; plant into a greenhouse from 25 April to 17 July; plant out into open ground from 16 May to 17 July.

Eggplant in Indianapolis: soil, season and weather

In Indianapolis the soil, not frost, sets the date: the last frost is over around 14 April, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 16 May, 32 days later.

Last spring frost	14 April
Top 7 cm of soil at 18 °C	16 May, 32 days after the last frost
Into an unheated greenhouse	25 April – 17 July; April outside: 6.2 °C at night, 17.4 °C by day; card 21–29 °C
First autumn frost	6 November, 174 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	25 July – 25 September
Days left for picking	104
Daylight	11:59 on 17 March, 14:23 on 16 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 9 rainy days

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

Eggplant in Indianapolis: care after planting

Planted on 16 May: in the first weeks water every 4 days.

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

16 May — feed: balanced (NPK)
13 June — 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 Indianapolis during the eggplant season

Days average above the eggplant card's 21–29 °C in July (29.7 °C). Months that stay below 21 °C even by day on average: October (19.5 °C) and November (11.3 °C). Nights average below 21 °C in every month of the season, from 2.4 °C to 19.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.9	12.4	120	14	14:21
June	28.4	17.6	89	11	14:58
July	29.7	19.8	124	13	14:44
August	28.5	18.7	88	10	13:46
September	26.2	15.9	76	7	12:30
October	19.5	9.7	82	10	11:12
November	11.3	2.4	72	9	10:01

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Indianapolis, Evansville is 11 days earlier and Fort Wayne 5 days later.

City	Distance	Date	Difference
Cincinnati	159 km	13 May – 20 July	3 days earlier
Dayton	168 km	16 May – 20 July	same day
Fort Wayne	169 km	21 May – 13 July	5 days later
Louisville	173 km	7 May – 22 July	9 days earlier
Frankfort	207 km	13 May – 14 July	3 days earlier
Evansville	233 km	5 May – 21 July	11 days earlier

Where to buy eggplant plants and seeds near Indianapolis

Buy plants ready to set out from 16 May to 17 July (from 25 April to 17 July for an unheated greenhouse); seed for raising your own is sown from 24 February to 18 May. Within 15 km of Indianapolis OpenStreetMap lists 9 garden centres, 1 farm-supply shop, 2 plant nurseries and 4 markets (collected 20 October 2026).

Butler's Flowers & Plants — plant nursery
4 km
Indy Yard Nursery — plant nursery
11 km
Fresh for You Market — market
2 km
The Farmers' Market — market
13 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