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When to plant Broccoli in Wayne County County,

In Wayne County County, plant Broccoli in spring between April 14 and May 5, once soil temps hold above 50°F. Wayne County County's last frost averages April 28, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between August 11 and August 25 — roughly 90 days before the first frost on October 20.

When to Plant Broccoli in Wayne County, MI

Broccoli
Wayne County, Michigan Zone 6b June

Your June gardening checklist

Here's what deserves your attention in Wayne County, Michigan this month. Everything below is tailored to Zone 6b and timed around your local frost dates.

Avg. last frost April 28
Avg. first frost October 20
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 15.1 hrs
  1. Start broccoli under lights

    These need a head start before your last frost (April 28). Sow into cells now so you're ready to transplant in a few weeks.

  2. Bring in the broccoli

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

To set up a strong July, finish these tasks
  • First harvests: broccoli

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Broccoli is a nutrient-dense cool-season crop that produces large central heads followed by smaller side shoots. It is one of the most popular garden vegetables.

Wayne County, Michigan is in USDA Zone 6b. The average last spring frost is April 28 and the first fall frost is October 20, giving you a growing season of approximately 175 days.

At an elevation of 1,066 feet, Wayne County receives approximately 34.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Broccoli during the growing season.

Wayne County, MI (Zone 6b) Moderate season
175 days
Last Spring Frost April 28
175 growing days
First Fall Frost October 20
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Wayne County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.9

Drainage

Well Drained

How Much Broccoli to Grow

1-2 lbs
Average yield per plant
3
Plants per person
6 sq ft
Space per person

For a family of 4, plant approximately 12 broccoli plants in about 24 sq ft. In Wayne County's 175-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Monthly Watering Guide for Broccoli

Broccoli needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Broccoli Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 4.3" 3" 1.3" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4.4" 0" ✅ Rainfall sufficient
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.4" 0.9" 💧 Light watering
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 2.6" 1.7" 💧 Light watering
Nov 2.2" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Wayne County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Broccoli Planting Timeline — Wayne County, MI

Broccoli Planting Calendar

Activity When Date Range
Start Indoors March 24 Mar 24 – Apr 7
Transplant Outdoors April 28 Apr 28 – May 12
Direct Sow April 14 Apr 14 – May 5
Harvest June 30 Jun 30 – Aug 11
Fall Sowing August 11 Aug 11 – Aug 25

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Fall Sowing Harvest
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

175 days in Wayne County

Growing Tips for Wayne County

Start seeds indoors 6-8 weeks before last frost. Provide consistent moisture to prevent hollow stems. Harvest heads before yellow flowers appear.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Broccoli Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Allow plants to flower 2nd year; collect dry pods.
Storage Store airtight; viable 5 years at 35°F, under 50% humidity.

Isolate 1/2 mile from other brassicas. Biennial — must overwinter roots.

Frequently Asked Questions

When should I plant Broccoli in Wayne County, MI?

Wayne County is in Zone 6b with an average last frost of April 28. Plan your Broccoli planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wayne County, MI?

Wayne County, Michigan is in USDA Hardiness Zone 6b. The average last spring frost is April 28 and first fall frost is October 20.

When should I plant Broccoli in Wayne County County, ?

In Wayne County County, , plant Broccoli after the last frost (around April 28) and before the first frost (around October 20). Best results when soil holds above 50°F.

What growing zone is Wayne County County, for Broccoli?

Wayne County County sits in USDA Zone 6b. Broccoli grows reliably in zones 2a through 11b, so it's a good fit here.

Can Broccoli grow in Wayne County County's climate?

Yes — Broccoli grows well in Wayne County County's temperate climate. Wayne County County averages a 175-day frost-free season, with last frost around April 28 and first frost around October 20.

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Your Wayne County Garden Planner — Free

A 22-page printable planner built for Wayne County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wayne County, MI. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.