When to plant watermelons in Shreveport: 20 March – 30 August

In Shreveport, watermelon: sow for seedlings from 30 January to 2 August; plant into a greenhouse from 27 February to 30 August; plant out into open ground from 20 March to 30 August. For plants and seeds, the places nearby include Feed Sales & Service (farm supply, 2 km) and Bossier City Farmers Market (farm shop, 11 km); addresses and opening hours are below.

Watermelon in Shreveport: soil, season and weather

In Shreveport the soil, not frost, sets the date: the last frost is over around 20 February, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 20 March, 28 days later.

Last spring frost	20 February
Top 7 cm of soil at 18 °C	20 March, 28 days after the last frost
Into an unheated greenhouse	27 February – 30 August; February outside: 7 °C at night, 17.1 °C by day; card 18–35 °C
First autumn frost	9 December, 264 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	18 May – 28 October
Days left for picking	205
Daylight	11:11 on 20 February, 12:07 on 20 March
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 8 rainy days

The same dates in Shreveport hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Shreveport: care after planting

Planted on 20 March: in the first weeks water every 5 days.

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

20 March — feed: balanced (NPK)

Pests and diseases of watermelon 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 Shreveport during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 34 °C. Months that stay below 18 °C even by day on average: December (16.2 °C). Nights average below 18 °C in March, April and October–December (7.3–15.9 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	21.3	10.9	162	12	11:57
April	24.1	13.9	200	12	12:58
May	28.2	18.6	130	12	13:49
June	32.1	22.6	80	10	14:16
July	34	24.7	78	10	14:05
August	34	24.4	97	9	13:22
September	31.3	21.4	63	8	12:24
October	26.5	15.9	77	7	11:25
November	20	10	81	7	10:31
December	16.2	7.3	118	10	10:02

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Shreveport, Lafayette is 19 days earlier and Fort Smith 42 days later.

City	Distance	Date	Difference
Dallas	284 km	27 March – 26 August	7 days later
Little Rock	290 km	22 April – 11 August	33 days later
Lafayette	300 km	1 March – 27 August	19 days earlier
Fort Smith	329 km	1 May – 9 August	42 days later
Fort Worth	332 km	22 March – 21 August	2 days later
Baton Rouge	334 km	3 March – 30 August	17 days earlier

Where to buy watermelon plants and seeds near Shreveport

Buy plants ready to set out from 20 March to 30 August (from 27 February to 30 August for an unheated greenhouse); seed for raising your own is sown from 30 January to 2 August. Within 15 km of Shreveport OpenStreetMap lists 2 farm-supply shops and 1 farm shop (collected 28 October 2026).

Pro Pest & Lawn Store — farm supply
East Texas Street 3333, 71111 Bossier City · Mon–Fri 07:30–17:00 · 12 km
Feed Sales & Service — farm supply
Jewella Avenue 3805, 71109 Shreveport · 2 km
Bossier City Farmers Market — farm shop
East Texas Street 2950, 71111 Bossier City · Sat 09:00–13:00 · 11 km · bossiercityfarmersmarket.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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