When to plant bell peppers in Louisville: 7 May – 22 July

In Louisville, bell pepper: sow for seedlings from 15 February to 23 May; plant into a greenhouse from 16 April to 22 July; plant out into open ground from 7 May to 22 July. For plants and seeds, the places nearby include Grant Line Nursery & Garden Center (garden centre, 9 km); addresses and opening hours are below.

Bell Pepper in Louisville: soil, season and weather

In Louisville the soil, not frost, sets the date: the last frost is over around 6 April, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 7 May, 31 days later.

Last spring frost	6 April
Top 7 cm of soil at 18 °C	7 May, 31 days after the last frost
Into an unheated greenhouse	16 April – 22 July; April outside: 8.2 °C at night, 19.6 °C by day; card 15–30 °C
First autumn frost	11 November, 188 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	16 July – 30 September
Days left for picking	118
Daylight	11:37 on 8 March, 13:59 on 7 May
Watering outdoors when fruiting (card)	every 4 days; the driest month, November, has 8 rainy days

The same dates in Louisville hold for Cucumber, Eggplant, Zucchini, Pumpkin and Watermelon.

Bell Pepper in Louisville: care after planting

Planted on 7 May: in the first weeks water every 5 days.

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

7 May — feed: balanced (NPK)
4 June — feed: nitrogen

Pests and diseases of bell pepper 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 Louisville during the bell pepper season

Days average above the bell pepper card's 15–30 °C in July (31 °C). Months that stay below 15 °C even by day on average: November (13.6 °C). Nights average below 15 °C in May (14.1 °C), October (11.3 °C) and November (4.1 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	24.5	14.1	118	14	14:14
June	29.3	18.7	106	11	14:49
July	31	21.3	129	14	14:35
August	29.8	20.1	86	11	13:41
September	27.6	17.2	91	7	12:28
October	21.3	11.3	95	9	11:15
November	13.6	4.1	85	8	10:07

ERA5 2016–2025, Open-Meteo

Bell Pepper in nearby cities

Around Louisville, Bowling Green is 3 days earlier and Indianapolis 9 days later.

City	Distance	Date	Difference
Frankfort	78 km	13 May – 14 July	6 days later
Lexington	116 km	15 May – 18 July	8 days later
Cincinnati	146 km	13 May – 20 July	6 days later
Bowling Green	153 km	4 May – 21 July	3 days earlier
Evansville	159 km	5 May – 21 July	2 days earlier
Indianapolis	173 km	16 May – 17 July	9 days later

Where to buy bell pepper plants and seeds near Louisville

Buy plants ready to set out from 7 May to 22 July (from 16 April to 22 July for an unheated greenhouse); seed for raising your own is sown from 15 February to 23 May. Within 15 km of Louisville OpenStreetMap lists 1 garden centre, 1 farm-supply shop, 1 plant nursery and 7 markets (collected 20 October 2026).

Logan Street Market — market
2 km · loganstmarket.com
Klondike Deli — market
11 km
Grant Line Nursery & Garden Center — garden centre
Grant Line Road 2223, 47150 New Albany · Mon–Sat 09:00–17:00; Sun closed · 9 km · grantlinegarden.com
New Albany Farmers' Market — market
East Market Street 202, 47150 New Albany · Sun–Fri closed; Apr–Sept Sat 08:00–12:00; Oct–Mar Sat 10:00–12:00 · 7 km · namainstreet.org

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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