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When to Plant Brussels Sprout in Sterling Heights, Michigan (48310)

Location

Sterling Heights, Michigan

ZIP Code

48310

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Wednesday, January 21, 2026

Transplant Outdoors

Wednesday, April 15, 2026

Based on last frost Wednesday, April 15, 2026 · Zone 6b

Pro tip: Start Brussels Sprout seeds indoors 12 weeks before your last frost date, then transplant outdoors around Wednesday, April 15, 2026.

🌿 Plant Details

Scientific Name Brassica oleracea var. gemmifera
Days to Maturity 84 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

Ready to Plant Brussels Sprout in Sterling Heights?

Get your seeds now so they're ready by Wednesday, January 21, 2026.

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🛠️ Supplies You'll Need

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🌾 Seed Saving Guide

🔴 Difficult
✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow some sprouts to open into flowers. Harvest seed pods in summer/fall when dry.

Processing

Thresh dry pods, winnow to separate seeds from chaff.

Seed Viability

Up to 5 years when stored cool, dark, and dry.

Pro Tip

B. oleracea — crosses freely with other cole crops. Biennial nature makes isolation especially challenging.

Frequently Asked Questions

When should I plant Brussels Sprout in Sterling Heights, Michigan? +

In Sterling Heights (Zone 6b), start Brussels Sprout seeds indoors around Wednesday, January 21, 2026 and transplant outdoors around Wednesday, April 15, 2026.

What is the last frost date for Sterling Heights, Michigan? +

The average last spring frost date for Sterling Heights, Michigan (ZIP 48310) is around Wednesday, April 15, 2026. This is based on NOAA climate normals for USDA Zone 6b.

How long does Brussels Sprout take to grow? +

Brussels Sprout typically matures in about 84 days from transplanting. In Sterling Heights, that means you can expect harvest around Wednesday, April 15, 2026 plus 84 days.

Should I start Brussels Sprout indoors or direct sow in Michigan? +

Brussels Sprout should be started indoors 12 weeks before your last frost date. In Sterling Heights, that means starting around Wednesday, January 21, 2026.

Other Plants for Sterling Heights

Growing Brussels Sprout in Zone 6b

Brussels Sprout (Brassica oleracea var. gemmifera) is a popular garden vegetable. In Sterling Heights, Michigan, which is in USDA Hardiness Zone 6b, you should start seeds indoors around Wednesday, January 21, 2026.

Your average last frost date is Wednesday, April 15, 2026. Plan to transplant your Brussels Sprout seedlings outdoors around Wednesday, April 15, 2026, about 0 weeks after your last frost date.