When to plant tomatoes in Lawton: 13 March – 22 July

In Lawton, tomato: sow for seedlings from 30 December to 31 May; plant into a greenhouse from 20 February to 22 July; plant out into open ground from 13 March to 22 July. For plants and seeds, the places nearby include Walmart Garden Center (garden centre, 8 km); addresses and opening hours are below.

Tomato in Lawton: soil, season and weather

In Lawton the soil, not frost, sets the date: the last frost is over around 1 March, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 13 March, 12 days later.

Last spring frost	1 March
Top 7 cm of soil at 15 °C	13 March, 12 days after the last frost
Into an unheated greenhouse	20 February – 22 July; February outside: 2 °C at night, 14.9 °C by day; card 16–27 °C
First autumn frost	11 November, 243 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	22 May – 30 September
Days left for picking	173
Daylight	10:11 on 20 January, 11:51 on 13 March
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 5 rainy days

Tomato in Lawton: care after planting

Planted on 13 March: in the first weeks water every 4 days.

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

13 March — feed: balanced (NPK)
10 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 Lawton during the tomato season

Days average above the tomato card's 16–27 °C in May–September (28.4–35.8 °C). Nights average below 16 °C in March, April and October, November (7.3–14 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	21	8	65	7	11:56
April	24.5	11.7	136	8	13:02
May	28.4	17.2	128	12	13:57
June	33	22.2	68	8	14:28
July	35.8	24.7	33	5	14:16
August	35.5	24.6	43	5	13:29
September	31.5	20.6	61	6	12:26
October	25.6	14	78	6	11:21
November	18.6	7.3	40	4	10:22

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Lawton, Dallas is 13 days earlier and Wichita 31 days later.

City	Distance	Date	Difference
Oklahoma City	126 km	23 March – 21 July	10 days later
Fort Worth	231 km	1 March – 10 August	12 days earlier
Dallas	251 km	28 February – 15 August	13 days earlier
Tulsa	278 km	6 April – 28 July	24 days later
Wichita	357 km	13 April – 10 July	31 days later
Fort Smith	376 km	5 April – 29 July	23 days later

Where to buy tomato plants and seeds near Lawton

Buy plants ready to set out from 13 March to 22 July (from 20 February to 22 July for an unheated greenhouse); seed for raising your own is sown from 30 December to 31 May. Within 15 km of Lawton OpenStreetMap lists 2 garden centres and 1 market (collected 29 October 2026).

Walmart Garden Center — garden centre
Northwest Quanhah Parker Trail Way 6301, 73505 Lawton · 24/7 · 8 km · walmart.com
Bedrock Nursery — garden centre
8 km
Quarry Hill AFEES — market
7 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