Frost dates and growing zone for your town

Pick your Massachusetts town or village to see its growing zone and the frost dates at the nearest NOAA weather station.

Town:

How it works: the zone is from the 2023 plant hardiness zone data (PRISM Climate Group, Oregon State University) for one ZIP code in your town; the frost dates are NOAA's 1991–2020 climate normals at the closest station with at least 15 years of records. Height and distance from the coast matter, so a station a few miles away can differ from your garden. The full tables are in our frost dates by town and growing zones by town guides, and the growing calendar has the rest of the year.

We grow seed garlic and dahlias in Groton, Massachusetts.

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