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When to Plant Broccoli Raab in Agate, North Dakota (58310)

Location

Agate, North Dakota

ZIP Code

58310

USDA Zone

3b

Last Frost

Wednesday, May 20, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Wednesday, April 8, 2026

Based on last frost Wednesday, May 20, 2026 · Zone 3b

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 Agate?

Get your seeds now so they're ready by Wednesday, April 8, 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 Agate, North Dakota? +

In Agate (Zone 3b), direct sow Broccoli Raab outdoors around Wednesday, April 8, 2026.

What is the last frost date for Agate, North Dakota? +

The average last spring frost date for Agate, North Dakota (ZIP 58310) is around Wednesday, May 20, 2026. This is based on NOAA climate normals for USDA Zone 3b.

How long does Broccoli Raab take to grow? +

Broccoli Raab typically matures in about 60 days from direct sowing. In Agate, that means you can expect harvest around Wednesday, April 8, 2026 plus 60 days.

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

Broccoli Raab does best when direct sown outdoors. In Agate, sow directly around Wednesday, April 8, 2026.

📚 More Broccoli Raab Planting Guides

🗺️

Broccoli Raab in North Dakota

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 3b Broccoli Raab Guide

All cities in your zone · Avg dates

→

Other Plants for Agate

Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussels Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Chili Pepper Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini Sunflower Marigold Zinnia Nasturtium Cosmos Echinacea (Coneflower) Petunia Black-eyed Susan Apple Tree Pear Tree Peach Tree Plum Tree Sweet Cherry Tree Lemon Tree Borage Lemongrass Ginger Stevia Tomatillo Edamame Fava Bean Mâche Mizuna Sorrel Shishito Pepper Banana Pepper Watermelon Radish Napa Cabbage Popcorn Catnip Valerian Lemon Verbena Bee Balm Anise Lovage Chervil Summer Savory Dahlia Snapdragon Pansy Sweet Pea Morning Glory Hollyhock Larkspur Bachelor Button Columbine Impatiens Salvia (Annual) Sweet Alyssum Celosia Lupine Verbena Elderberry Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Broccoli Raab in Zone 3b

Broccoli Raab (Brassica rapa subsp. rapa) is a popular garden vegetable. In Agate, North Dakota, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, April 8, 2026.

Your average last frost date is Wednesday, May 20, 2026. Broccoli Raab grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.