When to Plant Broccoli Raab in Minneapolis, Minnesota (55421)

Location

Minneapolis, Minnesota

ZIP Code

55421

USDA Zone

Last Frost

Sunday, May 10, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Sunday, March 29, 2026

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

Pro tip: Sow Broccoli Raab directly outdoors 6 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Brassica rapa subsp. rapa

Days to Maturity 60 days

Mature Height 12-24"

Spread 8"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

6" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 4-7 days

Ready to Plant Broccoli Raab in Minneapolis?

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

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🤝 Good Companions

OnionBeetCelery

⚠️ Avoid Planting Near

TomatoPepperStrawberry

🤝

Full Companion Planting Guide for Broccoli Raab

See which plants help Broccoli Raab thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow plants to flower fully and seed pods to turn tan and dry.

Processing

Thresh dried stalks, winnow to separate seeds from pod fragments.

Seed Viability

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

Pro Tip

Brassica rapa — crosses with turnip, bok choy, and napa cabbage. Isolate by 300 feet.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 4 per sq ft of Broccoli Raab. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Broccoli Raab in Minneapolis, Minnesota? +

In Minneapolis (Zone 5a), direct sow Broccoli Raab outdoors around Sunday, March 29, 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 Broccoli Raab take to grow? +

Broccoli Raab typically matures in about 60 days from direct sowing. In Minneapolis, that means you can expect harvest around Sunday, March 29, 2026 plus 60 days.

Should I start Broccoli Raab indoors or direct sow in Minnesota? +

Broccoli Raab does best when direct sown outdoors. In Minneapolis, sow directly around Sunday, March 29, 2026.

📚 More Broccoli Raab Planting Guides

🗺️

Broccoli Raab in Minnesota

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5a Broccoli Raab Guide

All cities in your zone · Avg dates

→

Other Plants for Minneapolis

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Growing Broccoli Raab in Zone 5a

Broccoli Raab (Brassica rapa subsp. rapa) is a popular garden vegetable. In Minneapolis, Minnesota, which is in USDA Hardiness Zone 5a, you should direct sow seeds around Sunday, March 29, 2026.

Your average last frost date is Sunday, May 10, 2026. Broccoli Raab grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.