When to plant pumpkins in Baltimore: 5 May – 28 July

In Baltimore, pumpkin: sow for seedlings from 3 March to 16 June; plant into a greenhouse from 14 April to 28 July; plant out into open ground from 5 May to 28 July. For plants and seeds, the places nearby include Weber's Cider Mill Farm (farm shop, 15 km); addresses and opening hours are below.

Pumpkin in Baltimore: soil, season and weather

In Baltimore the soil, not frost, sets the date: the last frost is over around 31 March, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 5 May, 35 days later.

Last spring frost	31 March
Top 7 cm of soil at 18 °C	5 May, 35 days after the last frost
First autumn frost	22 November, 201 days after the start
Days in the bed to the first harvest (card)	75
First harvest, if planted in this window	19 July – 11 October
Days left for picking	126
Daylight	12:17 on 24 March, 13:59 on 5 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 8 rainy days

The same dates in Baltimore hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Watermelon.

Pumpkin in Baltimore: care after planting

Planted on 5 May: in the first weeks water every 4 days.

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

26 May — feed: nitrogen

Pests and diseases of pumpkin 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 Baltimore during the pumpkin season

About 991 mm of rain falls in the season; November is the driest month (88 mm) and July the wettest (191 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.9	13.9	163	14	14:19
June	27.3	19.2	139	13	14:55
July	30	22.5	191	16	14:41
August	28.5	21.4	162	13	13:44
September	25.5	18.4	146	11	12:29
October	19.7	12.4	102	9	11:13
November	13.1	5.6	88	8	10:03

ERA5 2016–2025, Open-Meteo

Pumpkin in nearby cities

Around Baltimore, Washington, D.C. is 1 day earlier and Harrisburg 20 days later.

City	Distance	Date	Difference
Annapolis	37 km	8 May – 25 July	3 days later
Washington, D.C.	56 km	4 May – 22 July	1 day earlier
Dover	95 km	11 May – 1 August	6 days later
Hagerstown	104 km	23 May – 17 July	18 days later
Harrisburg	111 km	25 May – 17 July	20 days later
Philadelphia	144 km	14 May – 17 July	9 days later

Where to buy pumpkin plants and seeds near Baltimore

Buy plants ready to set out from 5 May to 28 July (from 14 April to 28 July for an unheated greenhouse); seed for raising your own is sown from 3 March to 16 June. Within 15 km of Baltimore OpenStreetMap lists 8 garden centres, 4 plant nurseries, 20 markets and 3 farm shops (collected 20 October 2026).

BMI Farmers Market — market
Sat 09:00–13:00 · 2 km
Druid Hill Farmers Market — market
Jun–Sept: Wed 15:30–19:30 · 4 km
ZaVino Italian Marketplace — market
Falls Road 5100 · 8 km
Weber's Cider Mill Farm — farm shop
Proctor Lane 2526, 21234 Parkville · 09:00–19:00 "Seasonally" · 15 km · weberscidermillfarm.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.

Questions