Growli

USDA hardiness zone

Zone 6-10 to 0°F

Southern Pennsylvania, Ohio, Missouri, parts of mid-Atlantic · 180-day growing season

What grows in Zone 6

Zone 6 suits the following plants based on temperature tolerance and growing-season length:

Climate notes for Zone 6

Two-season growing — cool-season crops in spring/fall, warm-season in summer. Heirloom tomato varieties work well here.

Frost dates and timing

Average last spring frostmid- to late April
Average first fall frostmid- to late October
Growing season length~180 days
Temperature range (F)-10 to 0°F
Temperature range (C)-23 to -18°C

These are zone-wide averages. Local microclimates (south-facing slopes, urban heat, lakeside warmth) can shift dates by 1-2 weeks within the same zone.

Source and methodology

Temperature ranges from the USDA Plant Hardiness Zone Map (2023). Frost-date averages from NOAA Climate Data Online national averages within each zone. Plant recommendations curated by the Growli editorial team from US extension service references.

What to plant in Zone 6

Crop-by-crop sowing, transplant, and harvest dates for zone 6:

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