Zone 6a planting calendar

What to plant in June: zone 6a

Zone 6a averages its last spring frost around April 30 and its first fall frost around October 10. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.

These are zone-average dates. Check an area-level frost estimate from thirty years of nearby weather history and this calendar retimes itself.

Last frost: April 30

First frost: October 10

Winter lows: -10 to -5 °F

Zone 6a Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Succession sow

Cucumberaround Jun 4
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Zucchiniaround Jun 4
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Basilaround Jun 4
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Bush beanaround Jun 11
Sowing 3: replant every 14 days so one planting never has to feed you all season.
Winter squasharound Jun 11
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Sweet cornaround Jun 11
Sowing 3: replant every 14 days so one planting never has to feed you all season.
Beetaround Jun 18
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Carrotaround Jun 18
Sowing 2: replant every 21 days so one planting never has to feed you all season.
Bush beanaround Jun 25
Sowing 4: replant every 14 days so one planting never has to feed you all season.
Cucumberaround Jun 25
Sowing 3: replant every 21 days so one planting never has to feed you all season.
Zucchiniaround Jun 25
Sowing 3: replant every 21 days so one planting never has to feed you all season.
Sweet cornaround Jun 25
Sowing 4: replant every 14 days so one planting never has to feed you all season.
Basilaround Jun 25
Sowing 3: replant every 21 days so one planting never has to feed you all season.

Garden care

Side-dress heavy feedersaround Jun 11
Tomatoes, peppers, corn and squash get compost or fish emulsion once fruit sets.
Prune and stake tomatoesaround Jun 18
Pull suckers and lower leaves for airflow. The main defense against blight in humid heat.
Shade the cool-season bedaround Jun 25
30-40% shade cloth keeps lettuce, cilantro and spinach from bolting in peak heat.

Plan & order

Order fall seedaround Jun 12
Fall brassicas and greens get sown in the heat of summer. Have the seed on hand before that window opens.

Start indoors for fall

Broccoliaround Jun 15
Fall broccoli window opens. Sow trays any time in the next four weeks.

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