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When to Plant Vegetable Seeds or Transplants

Increase vegetable gardening success by matching planting times to your local climate.

Consider soil and air temperature as well as the average last spring and first fall frosts when calculating the length of your growing season. Cool season vegetables like lettuce, radishes, broccoli and peas will sprout and grow in cooler soil and air temperatures and many tolerate a light frost. Warm season vegetables like tomatoes, peppers, squash and melons need warm soil and air temperatures to sprout, grow and thrive.

The average number of frost-free days will help you decide what vegetables can be planted in the garden as seed. Those vegetables requiring a longer frost-free period to start producing need to be placed in the garden as transplants.

Review the seed packets and plant tags for help determining the best time to plant seeds and transplants in your garden.

A bit more information: Jump start the season or extend the harvest with the help of floating row covers, cold frames and cloches.

Upcoming
Events & Webinars

Mar. 18, 2026
FREE WEBINAR:
Patio, Deck and Balcony Gardens

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March 21 & 28, 2026
REALTORS Home & Garden Show
West Allis, WI
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March 24, 2026
SC Johnson Golden Rondelle Theater
Community Program

Racine, WI
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March 26, 2026
FREE WEBINAR: 
Getting Started Growing Vegetable and Flower Gardens
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April 1, 2026
FREE WEBINAR: 
Growing a Bountiful Harvest 
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April 9, 2026
FREE WEBINAR:
7 Steps to Managing Water on Your Property

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April 11, 2026
A Day in the Garden
Fond du Lac, WI
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April 18, 2026
3rd Annual Spring Rally
Oshkosh, WI
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April 19, 2026
Ebert's Greenhouse Village
Ixonia, WI

April 23, 2026
Iowa State University
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April 25, 2026
Pasquesi Home & Gardens
Lake Bluff, IL

April 26, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 2, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 6, 2026
FREE WEBINAR: 
Adding Native Plants
to Any Size Gardening Space

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May 7, 2026
Wauwatosa Public Library
Wauwatosa, WI

May 9, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 10, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 13, 2026
Roots & Branches
West Bend, WI
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May 16, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 17, 2026
Ebert's Greenhouse Village
Ixonia, WI

May 21, 2026
FREE WEBINAR: 
Planting & Care of Your Rain Garden
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June 3, 2026
FREE WEBINAR: 
Managing Your Landscape
with Pollinators in Mind

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Sept. 3, 2026
FREE WEBINAR: 
Tree Planting and Care
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Sept. 12, 2026
Knowledge in Bloom Conference
Milwaukee, WI
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Sept. 17, 2026
FREE WEBINAR:
Fall Landscape Care and Planting

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