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USDA hardiness zone by ZIP

USDA hardiness zone for ZIP 02108 (Boston)

ZIP 02108 is USDA hardiness zone 7a; use the Boston frost station's Apr 20 last frost and Oct 31 first frost to turn that zone into a planting calendar.

Source: boston-logan frost station, USDA zone 7a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

ZIP 02108 is in USDA hardiness zone 7a. For vegetables, the zone is useful context, but frost dates decide the actual planting window.

Use the ZIP calendar to turn the zone into crop-specific dates.

Planting calendars in zone 7a

Boston, MA · Zone 7a Tomatoes Apr 27 Open answer · last frost Apr 20 Boston, MA · Zone 7a Peppers May 4 Open answer · last frost Apr 20 Boston, MA · Zone 7a Basil Apr 30 Open answer · last frost Apr 20 Boston, MA · Zone 7a Carrots Mar 30 Open answer · last frost Apr 20 Boston, MA · Zone 7a Lettuce Apr 6 Open answer · last frost Apr 20 Boston, MA · Zone 7a Cucumbers Apr 30 Open answer · last frost Apr 20 Boston, MA · Zone 7a Zucchini Apr 30 Open answer · last frost Apr 20 Boston, MA · Zone 7a Cilantro Apr 6 Open answer · last frost Apr 20 Boston, MA · Zone 7a Bush beans Apr 27 Open answer · last frost Apr 20 Boston, MA · Zone 7a Spinach Mar 23 Open answer · last frost Apr 20 Boston, MA · Zone 7a Radishes Mar 23 Open answer · last frost Apr 20 Boston, MA · Zone 7a Kale Apr 6 Open answer · last frost Apr 20 Boston, MA · Zone 7a Watermelon May 4 Open answer · last frost Apr 20