Growli

USDA hardiness zone

Zone 810 to 20°F

Texas (much of), Louisiana, North Florida, Oregon coast, Washington (parts) · 230-day growing season

What grows in Zone 8

Zone 8 suits the following plants based on temperature tolerance and growing-season length:

Climate notes for Zone 8

Summer heat can shut down tomato production July-August. Many zone 8 gardeners do spring + fall tomato crops with a midsummer break.

Frost dates and timing

Average last spring frostmid- to late March
Average first fall frostmid-November
Growing season length~230 days
Temperature range (F)10 to 20°F
Temperature range (C)-12 to -7°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 8

Crop-by-crop sowing, transplant, and harvest dates for zone 8:

Common questions

What can I plant in USDA Zone 8?

Zone 8 suits Tomatoes (spring + fall plantings), Peppers (sweet + hot), Okra, Sweet potatoes, Southern peas, Melons, watermelon, and more, based on its 230-day growing season and 10 to 20°F average minimum temperatures.

When is the last frost in Zone 8?

The average last spring frost in Zone 8 passes around mid- to late March, and the first fall frost arrives around mid-November. Wait until after the last frost date before planting tender crops outdoors.

How long is the growing season in Zone 8?

Zone 8 has roughly 230 frost-free growing days between the average last spring frost (mid- to late March) and the first fall frost (mid-November).

What is the temperature range of USDA Zone 8?

USDA Zone 8 is defined by average annual minimum temperatures of 10 to 20°F (-12 to -7°C).

When can I start planting in Zone 8?

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

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