Spring Vegetable Planting Guide by Zone (Zones 3-9)

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Spring is the most important season for vegetable gardeners — and the biggest mistake most beginners make is planting too early or too late. The right timing depends almost entirely on your USDA Hardiness Zone. This guide gives you a zone-by-zone spring vegetable planting schedule so you can start seeds, transplant, and harvest with confidence.

Why Planting Zones Matter

The USDA Plant Hardiness Zone Map divides North America into zones based on average annual minimum winter temperatures. Zones 3 through 9 cover the vast majority of the continental United States and southern Canada. Each zone has a different last frost date — the key benchmark for spring planting.

Plant too early and a late frost kills your seedlings overnight. Plant too late and your crops miss the ideal growing window. Getting this right is the foundation of a productive spring garden.

Already know your zone? Jump straight to your section below. Not sure? The USDA website lets you look up your zone by zip code.

Understanding Last Frost Dates

Your last expected frost date is the average date after which frost is unlikely in your area. It’s not a guarantee — late frosts happen — but it’s your planning anchor. Most vegetables fall into two categories:

• Cool-season crops: Can tolerate light frost. Plant 2–4 weeks before last frost date.
• Warm-season crops: Frost-sensitive. Plant after last frost date, once soil temps hit 60°F+.

For a full planting calendar with specific weeks, check our vegetable planting calendar which covers all major crops month by month.

Zone 3 — Last Frost: Late May to Early June

Zone 3 covers northern Minnesota, parts of Montana, and much of Canada. Winters are brutal and the growing season is short — roughly 90 to 100 days.

Start indoors (10–12 weeks before last frost — mid-March): Tomatoes, peppers, eggplant, celery, onions from seed

Direct sow outdoors (as soon as soil is workable, late April): Peas, spinach, kale, radishes, cold-hardy lettuce

Transplant warm-season crops: After June 1st. Use frost cloth to extend your season on either end.

Pro tip for Zone 3: Use raised beds. They warm up faster in spring and extend your season by 2–3 weeks. See our guide on raised bed gardening for beginners for setup instructions.

Zone 4 — Last Frost: Mid to Late May

Zone 4 includes northern Wisconsin, parts of New Hampshire, and the Dakotas. Growing season is 100–110 days.

Start indoors (8–10 weeks before last frost — early March): Tomatoes, peppers, broccoli, cauliflower, Brussels sprouts

Direct sow outdoors (mid-April): Peas, carrots, beets, lettuce, Swiss chard, spinach

Transplant warm-season crops: After May 20th. Harden off seedlings for 7–10 days before transplanting.

Zone 5 — Last Frost: Mid-April to Mid-May

Zone 5 covers Chicago, Denver, and parts of the Pacific Northwest. It’s one of the most common zones for home gardeners in the US.

Start indoors (6–8 weeks before last frost — late February to early March): Tomatoes, peppers, eggplant, leeks, celery

Direct sow outdoors (late March to early April): Peas, spinach, radishes, kale, lettuce, Swiss chard

Transplant warm-season crops: After May 15th. Cucumbers, squash, and beans can be direct-sown at the same time.

Want to maximize your yield this season? Our article on the best vegetables to grow for savings shows which crops deliver the best return on investment per square foot.

Zone 6 — Last Frost: Mid-March to Mid-April

Zone 6 includes Philadelphia, St. Louis, and much of the mid-Atlantic and Midwest. Growing season is 150–160 days — long enough for two rounds of many crops.

Start indoors (late January to mid-February): Tomatoes, peppers, broccoli, cabbage, onions

Direct sow outdoors (late February to early March): Peas, spinach, lettuce, kale, arugula

Transplant warm-season crops: Mid to late April. You can often squeeze in a second planting of cool-season crops in late summer for fall harvest.

Zone 7 — Last Frost: Mid-March to Early April

Zone 7 covers Virginia, Tennessee, Oklahoma, and the Pacific Northwest coast. Mild winters mean you can often winter-sow or keep hardy greens going year-round.

Start indoors (January): Tomatoes, peppers, eggplant

Direct sow outdoors (February): Peas, spinach, lettuce, brassicas, beets, carrots

Transplant warm-season crops: Mid to late March. Succession plant every 2–3 weeks for continuous harvests.

Zone 7 gardeners can also experiment with container gardening to make the most of patios and small spaces. Our container gardening guide covers everything from soil mixes to drainage.

Zone 8 — Last Frost: Mid-February to Mid-March

Zone 8 includes the Pacific Northwest lowlands, Georgia, and Texas. Summers are hot and long, so the challenge shifts from frost avoidance to heat management.

Start indoors (December to January): Tomatoes, peppers, eggplant for an early spring transplant

Direct sow outdoors (January to February): Peas, lettuce, spinach, brassicas, fennel, cilantro

Transplant warm-season crops: February to March. Plan for heat-tolerant varieties of tomatoes and peppers for summer survival.

Zone 8 tip: Plant summer crops early and fast — once temperatures hit 95°F+, many plants stop producing. Shade cloth becomes your best friend by June.

Zone 9 — Last Frost: Mid-January to Early February

Zone 9 covers Southern California, Arizona, and the Gulf Coast. Frost is rare, which means the spring garden starts in winter.

Start indoors (November to December): Tomatoes, peppers, eggplant

Direct sow outdoors (December to January): Nearly everything — lettuce, kale, peas, carrots, beets, broccoli

Transplant warm-season crops: January to February. Summer heat arrives early, so choose heat-tolerant varieties.

Zone 9 gardeners often grow in two distinct seasons: cool-weather crops in winter/spring, and heat-lovers in spring before the summer heat peak. The mild winters make it possible to garden nearly 12 months a year.

Building a Budget Spring Garden

You don’t need to spend a lot to have a productive spring garden. Starting from seed is 5–10x cheaper than buying transplants. A $3 seed packet can yield dozens of plants.

For a complete low-budget setup, our guide to vegetable garden setup under $50 walks through everything you need to start growing — from soil to containers to seeds — without breaking the budget.

If you’re brand new to growing food, how to start a vegetable garden covers the fundamentals step by step.

Quick-Start Checklist: Spring Planting by Zone

• Zone 3: Start seeds indoors mid-March. Transplant after June 1st.
• Zone 4: Start seeds indoors early March. Transplant after May 20th.
• Zone 5: Start seeds indoors late February. Transplant after May 15th.
• Zone 6: Start seeds indoors late January. Transplant mid to late April.
• Zone 7: Start seeds indoors January. Transplant mid to late March.
• Zone 8: Start seeds indoors December–January. Transplant February–March.
• Zone 9: Start seeds indoors November–December. Transplant January–February.

Final Thoughts

Knowing your zone takes the guesswork out of spring planting. The difference between a failed garden and a thriving one often comes down to timing — plant a week too early in Zone 5 and a surprise frost can wipe out weeks of work. Plant two weeks late in Zone 9 and you miss the optimal cool-weather window entirely.

Use this guide as your seasonal anchor, pair it with our vegetable planting calendar, and you’ll have the structure to plan an entire growing season — from first seed to final harvest.