Greenly Garden

When to plant pumpkins in Ithaca: 31 May – 14 July

In Ithaca, pumpkin: sow for seedlings from 29 March to 2 June; plant into a greenhouse from 10 May to 14 July; plant out into open ground from 31 May to 14 July.

Pumpkin in Ithaca: soil, season and weather

In Ithaca the soil, not frost, sets the date: the last frost is over around 28 April, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 31 May, 33 days later.

Last spring frost28 April
Top 7 cm of soil at 18 °C31 May, 33 days after the last frost
First autumn frost8 November, 161 days after the start
Days in the bed to the first harvest (card)75
First harvest, if planted in this window14 August – 27 September
Days left for picking86
Daylight13:32 on 19 April, 15:03 on 31 May
Watering outdoors when fruiting (card)every 5 days; the driest month, November, has 14 rainy days

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

Pumpkin in Ithaca: care after planting

Planted on 31 May: in the first weeks water every 4 days.

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

  • 21 June — 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 Ithaca during the pumpkin season

About 720 mm of rain falls in the season; November is the driest month (85 mm) and August the wettest (122 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
May19.88.7971414:35
June24.713.9991315:16
July27.617.51151315:00
August2616.81221313:56
September22.713.5861012:32
October16.58.11161311:07
November8.61.485149:48

ERA5 2016–2025, Open-Meteo

Pumpkin in nearby cities

Around Ithaca, Allentown is 8 days earlier and Rochester 2 days later.

CityDistanceDateDifference
Syracuse (United States)74 km31 May – 12 Julysame day
Rochester121 km2 June – 18 July2 days later
Buffalo201 km29 May – 16 July2 days earlier
Allentown222 km23 May – 9 July8 days earlier
Albany226 km30 May – 12 July1 day earlier
Harrisburg243 km25 May – 17 July6 days earlier

Where to buy pumpkin plants and seeds near Ithaca

Buy plants ready to set out from 31 May to 14 July (from 10 May to 14 July for an unheated greenhouse); seed for raising your own is sown from 29 March to 2 June. Within 15 km of Ithaca OpenStreetMap lists 3 garden centres, 3 plant nurseries, 6 markets and 3 farm shops (collected 29 October 2026).

Places: © OpenStreetMap contributors, ODbL.

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

When to plant pumpkins in Ithaca?

In Ithaca, pumpkin: sow for seedlings from 29 March to 2 June; plant into a greenhouse from 10 May to 14 July; plant out into open ground from 31 May to 14 July.

When to sow pumpkins for seedlings in Ithaca?

Sow for seedlings from 29 March to 2 June.

When is the last spring frost in Ithaca?

Last spring frost around 28 April, first autumn frost around 8 November.

Other crops in Ithaca, with their dates