When to Plant Grape Tomato in Minneapolis, Minnesota (55421)

Location

Minneapolis, Minnesota

ZIP Code

55421

USDA Zone

Last Frost

Sunday, May 10, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Sunday, March 29, 2026

Transplant Outdoors

Sunday, May 24, 2026

Based on last frost Sunday, May 10, 2026 · Zone 5a

Pro tip: Start Grape Tomato seeds indoors 6 weeks before your last frost date, then transplant outdoors around Sunday, May 24, 2026.

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🌿 Plant Details

Scientific Name Solanum lycopersicum

Days to Maturity 65 days

Mature Height 36-60"

Spread 24"

Type Indeterminate

Fruit Size Mini (0.5 oz)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

24" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 5-10 days

Ready to Plant Grape Tomato in Minneapolis?

Get your seeds now so they're ready by Sunday, March 29, 2026.

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🤝 Good Companions

BasilCarrotParsleyMarigold

⚠️ Avoid Planting Near

BrassicasFennelCorn

🤝

Full Companion Planting Guide for Grape Tomato

See which plants help Grape Tomato thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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Common Grape Tomato Varieties

Popular cultivars to look for at your local nursery or seed supplier.

Juliet

hybrid 60d

Prolific, crack-resistant grape tomato with sweet flavor and long shelf life.

Red Grape

hybrid 70d

Classic red grape tomato with firm texture and concentrated sweetness.

Valentine

hybrid 55d

Heart-shaped grape tomatoes with exceptional sweetness; highly ornamental.

🌾 Seed Saving Guide

🟢 Easy

⚠️ Many varieties are F1 hybrid — look for OP/heirloom types

When to Harvest Seed

Let fruit ripen fully before extracting seeds.

Processing

Ferment seeds 2–3 days in water, rinse thoroughly, dry flat for 1 week.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Most grape tomatoes are F1 hybrids. Save seed only from open-pollinated varieties for true results.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 8 plants of Grape Tomato. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Grape Tomato in Minneapolis, Minnesota? +

In Minneapolis (Zone 5a), start Grape Tomato seeds indoors around Sunday, March 29, 2026 and transplant outdoors around Sunday, May 24, 2026.

What is the last frost date for Minneapolis, Minnesota? +

The average last spring frost date for Minneapolis, Minnesota (ZIP 55421) is around Sunday, May 10, 2026. This is based on NOAA climate normals for USDA Zone 5a.

How long does Grape Tomato take to grow? +

Grape Tomato typically matures in about 65 days from transplanting. In Minneapolis, that means you can expect harvest around Sunday, May 24, 2026 plus 65 days.

Should I start Grape Tomato indoors or direct sow in Minnesota? +

Grape Tomato should be started indoors 6 weeks before your last frost date. In Minneapolis, that means starting around Sunday, March 29, 2026.

📚 More Grape Tomato Planting Guides

🗺️

Grape Tomato in Minnesota

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5a Grape Tomato Guide

All cities in your zone · Avg dates

→

Other Plants for Minneapolis

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Growing Grape Tomato in Zone 5a

Grape Tomato (Solanum lycopersicum) is a popular garden vegetable. In Minneapolis, Minnesota, which is in USDA Hardiness Zone 5a, you should start seeds indoors around Sunday, March 29, 2026.

Your average last frost date is Sunday, May 10, 2026. Plan to transplant your Grape Tomato seedlings outdoors around Sunday, May 24, 2026, about 2 weeks after your last frost date.