Zone 1b planting calendar
What to plant in August: zone 1b
A rule-of-thumb starting point for zone 1b: last spring frost around June 15, first fall frost around August 15. Zones are set by winter lows, not frost dates, so two gardens in the same zone can be weeks apart. Measure your ZIP below for dates from your area's own 30-year record.
Typical last frost: June 15
Typical first frost: August 15
Winter lows: -55 to -50 °F
Plant to overwinter
- Garlicaround Aug 1
Cloves go in about two weeks before first frost. They root now, sleep, then bulb next summer.
Garden care
- Prune and stake tomatoes3 sowings: Aug 3 and Aug 10 and Aug 17
Pull suckers and lower leaves for airflow. The main defense against blight in humid heat. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.
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