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Sprout Authority

Growing lettuce in zone 3b

In USDA zone 3b, the typical last spring frost is May 17 and the first fall frost is September 23. Here is when to plant lettuce against those dates.

Start seeds indoorsApril 5 to April 12
Transplant outdoorsMay 17
Direct sow outdoorsApril 26 to May 3
Plant in fallJune 24 to July 29

These are zone 3b averages

Computed from 224 ZIP codes in zone 3b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for lettuce from Utah State University Extension. Zone dates are medians; local conditions vary.