When to plant watermelons in Greensboro: 28 April – 4 August

In Greensboro, watermelon: sow for seedlings from 10 March to 7 July; plant into a greenhouse from 7 April to 4 August; plant out into open ground from 28 April to 4 August. For plants and seeds, the places nearby include Guilford Garden Center (garden centre, 7 km) and Greensboro Shrub Nursery (garden centre, 8 km); addresses and opening hours are below.

Watermelon in Greensboro: soil, season and weather

In Greensboro the soil, not frost, sets the date: the last frost is over around 23 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 28 April, 36 days later.

Last spring frost	23 March
Top 7 cm of soil at 18 °C	28 April, 36 days after the last frost
Into an unheated greenhouse	7 April – 4 August; April outside: 10.1 °C at night, 22 °C by day; card 18–35 °C
First autumn frost	13 November, 199 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	26 June – 2 October
Days left for picking	140
Daylight	12:32 on 31 March, 13:33 on 28 April
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 7 rainy days

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

Watermelon in Greensboro: care after planting

Planted on 28 April: in the first weeks water every 5 days.

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

28 April — 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 Greensboro during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 31.9 °C. Months that stay below 18 °C even by day on average: November (15.9 °C). Nights average below 18 °C in April, May and September–November (5.8–17.7 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	22	10.1	95	9	13:05
May	25.7	15	116	12	14:04
June	29.7	18.9	86	11	14:36
July	31.9	21.6	116	14	14:23
August	29.9	20.4	105	14	13:33
September	27.3	17.7	126	10	12:27
October	21.8	11.9	83	7	11:19
November	15.9	5.8	70	7	10:17

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Greensboro, Columbia is 31 days earlier and Asheville 26 days later.

City	Distance	Date	Difference
Raleigh	109 km	18 April – 10 August	10 days earlier
Charlotte	133 km	13 April – 4 August	15 days earlier
Asheville	254 km	24 May – 24 July	26 days later
Columbia	256 km	28 March – 20 August	31 days earlier
Richmond	265 km	30 April – 7 August	2 days later
Wilmington	269 km	2 April – 22 August	26 days earlier

Where to buy watermelon plants and seeds near Greensboro

Buy plants ready to set out from 28 April to 4 August (from 7 April to 4 August for an unheated greenhouse); seed for raising your own is sown from 10 March to 7 July. Within 15 km of Greensboro OpenStreetMap lists 8 garden centres, 1 farm-supply shop, 9 markets and 6 farm shops (collected 29 October 2026).

Guilford Garden Center — garden centre
Milner Drive 701, 27410 Greensboro · Mon–Sat 09:00–18:00; Sun 12:00–18:00 · 9 km · guilfordgardencenter.com
Walmart Garden Center — garden centre
West Wendover Avenue 4424, 27407 Greensboro · 24/7 · 10 km · walmart.com
Guilford Garden Center — garden centre
Lawndale Drive 3811 · Mon–Sat 09:00–18:00; Sun 12:00–18:00 · 7 km · guilfordgardencenter.com
Greensboro Shrub Nursery — garden centre
Old Burlington Road 4514 · Tue–Thu 08:00–17:00; Fri 08:00–16:00 · 8 km · gsoshrub.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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