When to plant tomatoes in Birmingham (United States): 17 March – 6 August

In Birmingham (United States), tomato: sow for seedlings from 3 January to 15 June; plant into a greenhouse from 24 February to 6 August; plant out into open ground from 17 March to 6 August. For plants and seeds, the places nearby include Leaf & Petal (garden centre, 4 km) and Walmart Garden Center (garden centre, 8 km); addresses and opening hours are below.

Tomato in Birmingham (United States): soil, season and weather

In Birmingham (United States) frost, not soil, sets the date: the top 7 cm of soil warms to 15 °C — the minimum on the tomato card — around 3 March, 7 days before the last frost on 10 March, so planting waits only for the week after that frost.

Last spring frost	10 March
Top 7 cm of soil at 15 °C	3 March, 7 days before the last frost
Into an unheated greenhouse	24 February – 6 August; February outside: 6.2 °C at night, 16.4 °C by day; card 16–27 °C
First autumn frost	26 November, 254 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	26 May – 15 October
Days left for picking	184
Daylight	10:21 on 24 January, 12:00 on 17 March
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 8 rainy days

Tomato in Birmingham (United States): care after planting

Planted on 17 March: in the first weeks water every 4 days.

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

17 March — feed: balanced (NPK)
14 April — 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 Birmingham (United States) during the tomato season

Days average above the tomato card's 16–27 °C in June–September (29.8–32 °C). Nights average below 16 °C in March, April and October, November (8.1–14.2 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	19.3	8.9	149	12	11:56
April	22.7	11.6	125	10	13:00
May	27	16.6	108	12	13:53
June	30.4	20.5	121	14	14:22
July	32	22.6	116	17	14:10
August	31.5	22.1	119	15	13:25
September	29.8	19.8	87	8	12:25
October	24.6	14.2	89	7	11:23
November	18.3	8.1	77	8	10:27

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Birmingham (United States), Montgomery is 9 days earlier and Nashville 22 days later.

City	Distance	Date	Difference
Huntsville	132 km	5 April – 25 July	19 days later
Montgomery	136 km	8 March – 9 August	9 days earlier
Chattanooga	224 km	28 March – 23 July	11 days later
Atlanta	225 km	22 March – 2 August	5 days later
Nashville	294 km	8 April – 25 July	22 days later
Macon	303 km	12 March – 11 August	5 days earlier

Where to buy tomato plants and seeds near Birmingham (United States)

Buy plants ready to set out from 17 March to 6 August (from 24 February to 6 August for an unheated greenhouse); seed for raising your own is sown from 3 January to 15 June. Within 15 km of Birmingham (United States) OpenStreetMap lists 6 garden centres and 2 markets (collected 20 October 2026).

Leaf & Petal — garden centre
Lane Park Rd 2612, 35223 Mountain Brook · Mon–Sat 09:00–17:30; Sun 12:00–17:00 · 4 km · bbgardens.org
Walmart Garden Center — garden centre
Montclair Road 1600, 35210 Irondale · Mon–Sun 06:00–24:00 · 8 km · walmart.com
Walmart Garden Center — garden centre
Hackworth Road 2473, 35214 Birmingham · Mon–Sun 06:00–24:00 · 13 km · walmart.com
Leaf & Petal — garden centre
Crosshaven Drive 4113, Birmingham · 10 km · leafnpetal.com

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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