New York planting calendar
When to plant summer squash in New York — sow, transplant & harvest dates
New York is mostly USDA zone 5b (range 3b-7b). Dates below are derived from summer squash's frost tolerance and New York's frost window — not generic national averages.
Summer squash planting timetable for New York
| Stage | When in New York | Anchor |
|---|---|---|
| Start seeds indoors | mid-April (April 14) | 3 weeks before the last frost (early May (upstate) to mid-April (NYC)) |
| Transplant outside | mid-May (May 19) | 14 days after the last frost (early May (upstate) to mid-April (NYC)) |
| First harvest (estimate) | mid-July (July 13) | ~55 days from transplant |
Dates are state-wide averages for the dominant zone. Local microclimates — elevation, urban heat, coastal moderation — can shift the window by 1-2 weeks. Use the frost-date calculator for a date tuned to your town.
Why New York's climate shifts the summer squash dates
New York's last spring frost averages early May (upstate) to mid-April (NYC) and first fall frost early October (upstate) to early November (NYC), which sets the whole planting clock. New York spans cold Adirondack highlands to mild New York City. Most of upstate gardens in zones 5-6; the city and Long Island run much warmer. Wait for warm soil — summer squash stall in cold ground even after the air warms, so don't rush them out.
Summer squash (zucchini, yellow crookneck, pattypan) wants the same warm soil as cucumbers — 18 °C minimum at sowing depth. A single plant can outproduce a small family once it gets going, so don't over-plant.
Frost-risk note
Don't plant before early May (upstate) to mid-April (NYC) — even a light frost will kill seedlings overnight. In the Adirondacks and Tug Hill plateau (zone 3b) the safe date runs a week or two later.
Regional variation within New York
the Adirondacks and Tug Hill plateau (zone 3b) runs roughly 1-2 weeks behind the state average; New York City and Long Island (zone 7b) can plant 1-2 weeks earlier.
- New York City — USDA zone 7b
- Buffalo — USDA zone 6a
- Rochester — USDA zone 6a
- Albany — USDA zone 5b
- Syracuse — USDA zone 6a
What else to plant in New York around then
Pair the post-frost slot with other warm-season crops — peppers, beans, squash, and cucumbers.
Quick-grow guide
- Sun: Full sun — 6-8 hours direct.
- Soil temperature for germination: 21-29 °C (70-85 °F).
- Spacing: 24-36 inches (60-90 cm) between plants.
- Days to harvest: ~55 days from planting out.
Frequently asked questions
When is the best time to plant summer squash in New York?
In New York (mostly USDA zone 5b), sow summer squash indoors around mid-April, transplant outdoors mid-May (after the last frost, early May to mid-April), and harvest from mid-July. Summer squash are frost-tender — a single light frost kills seedlings, so they only go outside once frost danger has fully passed and the soil is warm.
What USDA zone is New York?
Most of New York sits in USDA hardiness zone 5b, with the state spanning roughly 3b-7b from the Adirondacks and Tug Hill plateau (zone 3b) to New York City and Long Island (zone 7b). The last spring frost averages early May (upstate) to mid-April (NYC) and the first fall frost early October (upstate) to early November (NYC).
Can you grow summer squash in New York?
Yes. New York's dominant zone 5b supports summer squash — the key is timing. Summer squash are frost-tender — a single light frost kills seedlings, so they only go outside once frost danger has fully passed and the soil is warm.
Does the planting date change across New York?
the Adirondacks and Tug Hill plateau (zone 3b) runs roughly 1-2 weeks behind the state average; New York City and Long Island (zone 7b) can plant 1-2 weeks earlier.
What else can I plant in New York around the same time?
Pair the post-frost slot with other warm-season crops — peppers, beans, squash, and cucumbers.
Source and methodology
State zone spans from the USDA Plant Hardiness Zone Map (2023); frost-date averages from NOAA Climate Data Online. Hot-state two-season timing cross-checked against the UF/IFAS Florida Gardening Calendar and the University of Arizona Cooperative Extension planting calendar. Curated by the Growli editorial team.
Keep going
- How to grow summer squash — full guide
- USDA zone 5 — frost dates and what else to plant
- Average frost dates by zone
- Frost-date calculator
- Month-by-month planting calendar
- When to plant summer squash in every US state
Same crop, nearby states (Northeast)
- When to plant summer squash in Connecticut
- When to plant summer squash in Delaware
- When to plant summer squash in Washington, DC
- When to plant summer squash in Maine
- When to plant summer squash in Maryland
- When to plant summer squash in Massachusetts
- When to plant summer squash in New Hampshire
- When to plant summer squash in New Jersey