When to plant bell peppers in Topeka: 6 May – 9 July

In Topeka, bell pepper: sow for seedlings from 14 February to 10 May; plant into a greenhouse from 15 April to 9 July; plant out into open ground from 6 May to 9 July. For plants and seeds, the places nearby include Lang Diesel, Inc. (farm supply, 7 km); addresses and opening hours are below.

Bell Pepper in Topeka: soil, season and weather

In Topeka the soil, not frost, sets the date: the last frost is over around 9 April, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 6 May, 27 days later.

Last spring frost	9 April
Top 7 cm of soil at 18 °C	6 May, 27 days after the last frost
Into an unheated greenhouse	15 April – 9 July; April outside: 7.9 °C at night, 20 °C by day; card 15–30 °C
First autumn frost	29 October, 176 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	15 July – 17 September
Days left for picking	106
Daylight	11:34 on 7 March, 14:00 on 6 May
Watering outdoors when fruiting (card)	every 4 days; the driest month, October, has 8 rainy days

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

Bell Pepper in Topeka: care after planting

Planted on 6 May: in the first weeks water every 5 days.

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

6 May — feed: balanced (NPK)
3 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 Topeka during the bell pepper season

Days average above the bell pepper card's 15–30 °C in June (30.8 °C), July (31.8 °C) and August (30.7 °C). Nights average below 15 °C in May (13.8 °C) and October (10.4 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	24.5	13.8	168	14	14:18
June	30.8	20.1	93	10	14:54
July	31.8	21.8	122	10	14:39
August	30.7	20.7	100	10	13:43
September	28	17.8	83	8	12:29
October	20.9	10.4	73	8	11:14

ERA5 2016–2025, Open-Meteo

Bell Pepper in nearby cities

Around Topeka, Wichita is 4 days earlier and Grand Island 12 days later.

City	Distance	Date	Difference
Kansas City	97 km	7 May – 12 July	1 day later
Wichita	207 km	2 May – 10 July	4 days earlier
Lincoln	215 km	11 May – 8 July	5 days later
Joplin	241 km	5 May – 12 July	1 day earlier
Omaha	249 km	17 May – 6 July	11 days later
Grand Island	309 km	18 May – 7 July	12 days later

Where to buy bell pepper plants and seeds near Topeka

Buy plants ready to set out from 6 May to 9 July (from 15 April to 9 July for an unheated greenhouse); seed for raising your own is sown from 14 February to 10 May. Within 15 km of Topeka OpenStreetMap lists 2 farm-supply shops, 4 markets and 1 farm shop (collected 28 October 2026).

Lang Diesel, Inc. — farm supply
Northwest US 24 Highway 1200, 66608 Topeka · 7 km · langdieselinc.com
Breadbasket Farmers Market — market
Southwest Wanamaker Road 1901, 66614 Topeka · Apr Sat[1]–Nov Sat[3] Sat 07:30–13:00 · 6 km · breadbasketfarmersmarket.com
Downtown Topeka Farmers Market — market
Apr Sat[1]–Nov Sat[2] Sat 07:30–12:00 · 3 km · topekafarmersmarket.com
Hi-Crest Market — market
Southeast Golf Park Boulevard 455, 66605 Topeka · Sat[2] 09:00–11:00 · 3 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.

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