When to plant tomatoes in Columbus: 4 May – 13 July

In Columbus, tomato: sow for seedlings from 20 February to 22 May; plant into a greenhouse from 13 April to 13 July; plant out into open ground from 4 May to 13 July. For plants and seeds, the places nearby include Strader's (garden centre, 5 km) and Oakland Nursery (garden centre, 8 km); addresses and opening hours are below.

Tomato in Columbus: soil, season and weather

In Columbus the soil, not frost, sets the date: the last frost is over around 22 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 4 May, 12 days later.

Last spring frost	22 April
Top 7 cm of soil at 15 °C	4 May, 12 days after the last frost
Into an unheated greenhouse	13 April – 13 July; April outside: 5.7 °C at night, 17.1 °C by day; card 16–27 °C
First autumn frost	2 November, 182 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	13 July – 21 September
Days left for picking	112
Daylight	11:48 on 13 March, 14:00 on 4 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 9 rainy days

Tomato in Columbus: care after planting

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

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

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

Pests and diseases of tomato 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 Columbus during the tomato season

Days average above the tomato card's 16–27 °C in June (27.4 °C), July (29.4 °C) and August (28.3 °C). Months that stay below 16 °C even by day on average: November (11.2 °C). Nights average below 16 °C in May and September–November (2.1–15.5 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.6	12	126	16	14:22
June	27.4	16.8	119	13	14:59
July	29.4	19.5	128	14	14:45
August	28.3	18.3	100	12	13:47
September	26	15.5	78	9	12:30
October	19.3	9.3	86	9	11:12
November	11.2	2.1	79	9	10:00

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Columbus, Charleston, West Virginia is 14 days earlier and Cleveland 10 days later.

City	Distance	Date	Difference
Dayton	104 km	4 May – 20 July	same day
Cincinnati	159 km	22 April – 20 July	12 days earlier
Toledo (United States)	193 km	9 May – 18 July	5 days later
Cleveland	203 km	14 May – 1 August	10 days later
Charleston, West Virginia	214 km	20 April – 18 July	14 days earlier
Fort Wayne	220 km	9 May – 13 July	5 days later

Where to buy tomato plants and seeds near Columbus

Buy plants ready to set out from 4 May to 13 July (from 13 April to 13 July for an unheated greenhouse); seed for raising your own is sown from 20 February to 22 May. Within 15 km of Columbus OpenStreetMap lists 9 garden centres, 1 farm-supply shop, 9 markets and 2 farm shops (collected 20 October 2026).

Walmart Garden Center — garden centre
Morse Road 3900, 43219 Columbus · 24/7 · 13 km · walmart.com
Oakland Nursery — garden centre
Oakland Park Avenue 1156, 43224 Columbus · Sun 08:00–18:00; Mon–Sat 09:00–20:00 · 8 km
Walmart Garden Center — garden centre
Bethel Road 2700, 43220 Columbus · 14 km · walmart.com
Strader's — garden centre
King Avenue 1354 · 5 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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