AMSEED American Seed Intelligence Platform

Growing in Boston

USDA zone (2023)
6b-7a
Median last frost
April 15
Median first frost
November 5
Growing season
~204 days

Frost dates are medians from NOAA climate normals: in half of years, frost comes later. The windows below are computed from each crop's planting rules against this city's dates, treat them as the center of the target, not the edges.

Tomato in Boston

StepWindowNotes
Start seed indoorsFebruary 18 to March 4
Transplant outApril 15 to May 6soil ≥ 60°F

Pepper in Boston

StepWindowNotes
Start seed indoorsFebruary 4 to February 18
Transplant outApril 22 to May 13soil ≥ 65°F

Other crops with rules for this climate

Data sources

Evidence: 2 sources, all independent references.

  1. USDA Plant Hardiness Zone Map (2023) · USDA Agricultural Research Service / Oregon State PRISM (2023), University or Government
  2. U.S. Climate Normals (1991-2020) · NOAA National Centers for Environmental Information (2021), University or Government