When To Plant Tomatoes

When you plant tomatoes depends on your last spring frost date. In most US regions you transplant seedlings one to two weeks after the last frost, once soil reaches 60°F (16°C), and start seeds indoors six to eight weeks earlier.

When should you plant tomatoes?

Plant tomatoes outdoors after the last spring frost, once nights stay above 50°F (10°C) and soil hits 60°F (16°C). Start seeds indoors six to eight weeks earlier. Use the region guide, then find your state below.

RegionStart seeds indoorsTransplant outdoors
Cold (zones 3–4)Mid-MarchLate May to early June
Cool (zones 5–6)Mid-MarchMid to late May
Mild (zones 7–8)Late FebruaryMid-April to early May
Warm (zones 9–10)December to JanuaryFebruary to March

When to Plant Tomatoes by US State (34)

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When to Plant Tomatoes FAQs

When is it too late to plant tomatoes?

It is too late once fewer than 90 warm days remain before your first fall frost, because most tomatoes need 55 to 90 days to fruit.

How early can you plant tomatoes?

Plant tomatoes outdoors only after the last spring frost, when night temperatures stay above 50°F (10°C) and soil reaches 60°F (16°C).

Can you plant tomatoes in summer?

Yes, in mild and warm zones you can plant a second crop in early to midsummer for a fall harvest, if 90 warm days remain.

What temperature is too cold for tomatoes?

Tomatoes stall below 50°F (10°C) and suffer damage near frost at 32°F (0°C). Protect or delay planting in cold snaps.

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