Growli

USDA hardiness zone

Zone 5-20 to -10°F

Iowa, southern Wisconsin, northern Illinois, parts of New York · 150-day growing season

What grows in Zone 5

Zone 5 suits the following plants based on temperature tolerance and growing-season length:

Climate notes for Zone 5

Classic Midwest growing zone. Most US gardening books default to zone 5 timing. Mulch garlic and perennials before deep winter freezes.

Frost dates and timing

Average last spring frostlate April / early May
Average first fall frostlate September / early October
Growing season length~150 days
Temperature range (F)-20 to -10°F
Temperature range (C)-29 to -23°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 5

Crop-by-crop sowing, transplant, and harvest dates for zone 5:

Common questions

What can I plant in USDA Zone 5?

Zone 5 suits Tomatoes (full range of varieties), Peppers, Eggplant, Squash, melons, cucumbers, Beans (bush + pole), Sweet corn, and more, based on its 150-day growing season and -20 to -10°F average minimum temperatures.

When is the last frost in Zone 5?

The average last spring frost in Zone 5 passes around late April / early May, and the first fall frost arrives around late September / early October. Wait until after the last frost date before planting tender crops outdoors.

How long is the growing season in Zone 5?

Zone 5 has roughly 150 frost-free growing days between the average last spring frost (late April / early May) and the first fall frost (late September / early October).

What is the temperature range of USDA Zone 5?

USDA Zone 5 is defined by average annual minimum temperatures of -20 to -10°F (-29 to -23°C).

When can I start planting in Zone 5?

Hardy cool-season crops can go outdoors a few weeks before the last frost (late April / early May); tender crops should wait until 1–2 weeks after it. Start warm-season seeds indoors about 6–8 weeks before late April / early May.

Related guides