When to plant watermelons in Gulfport: 25 February – 15 August

In Gulfport, watermelon: sow for seedlings from 7 January to 18 July; plant into a greenhouse from 4 February to 15 August; plant out into open ground from 25 February to 15 August. For plants and seeds, the places nearby include Walmart Garden Center (garden centre, 13 km); addresses and opening hours are below.

Watermelon in Gulfport: soil, season and weather

In Gulfport the soil, not frost, sets the date: the last frost is over around 7 February, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 25 February, 18 days later.

Last spring frost	7 February
Top 7 cm of soil at 18 °C	25 February, 18 days after the last frost
Into an unheated greenhouse	4 February – 15 August; February outside: 10.3 °C at night, 18.9 °C by day; card 18–35 °C
First autumn frost	24 November, 272 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	25 April – 13 October
Days left for picking	213
Daylight	10:39 on 28 January, 11:24 on 25 February
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 8 rainy days

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

Watermelon in Gulfport: care after planting

Planted on 25 February: in the first weeks water every 5 days.

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

25 February — 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 Gulfport during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 31.5 °C. Nights average below 18 °C in February–April and October, November (10.3–17.4 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
February	18.9	10.3	139	12	11:07
March	21.6	13.1	147	13	11:57
April	24.1	15.5	127	12	12:54
May	27.8	19.9	171	14	13:40
June	30.5	23	215	21	14:06
July	31.1	24.1	193	23	13:56
August	31.5	24.1	215	22	13:16
September	29.9	21.9	128	14	12:23
October	26.4	17.4	119	8	11:28
November	21.2	11.9	86	8	10:38

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Gulfport, New Orleans is 2 days earlier and Jackson 19 days later.

City	Distance	Date	Difference
Mobile	99 km	24 February – 5 September	1 day earlier
New Orleans	108 km	23 February – 5 September	2 days earlier
Pensacola	178 km	23 February – 9 September	2 days earlier
Baton Rouge	201 km	3 March – 30 August	6 days later
Jackson	236 km	16 March – 19 August	19 days later
Lafayette	283 km	1 March – 27 August	4 days later

Where to buy watermelon plants and seeds near Gulfport

Buy plants ready to set out from 25 February to 15 August (from 4 February to 15 August for an unheated greenhouse); seed for raising your own is sown from 7 January to 18 July. Within 15 km of Gulfport OpenStreetMap lists 2 garden centres and 2 markets (collected 28 October 2026).

Walmart Garden Center — garden centre
East Beach Boulevard 1617, 39571 Pass Christian · 24/7 · 13 km · walmart.com
Farmer's Market — market
Highway 49 14026, 39503 Gulfport · 10 km
Walmart Garden Center — garden centre
3 km
Health Nuts — market
5 km · healthnutsms.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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