FrostCal

When to Plant Broccoli in Michigan

In a typical Michigan location, start seeds indoors Mar 12 – Mar 26, then transplant outdoors Apr 9 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 29 in Port Huron and as late as Apr 28 in Cadillac. For a fall crop, plant around Aug 17 – Aug 24.

Method Start indoors, then transplant
Days to maturity 55–80 days

Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Broccoli Planting Dates by City

CityStart indoorsTransplantFall planting
DetroitMar 3 – Mar 17Mar 31 – Apr 7Aug 29 – Sep 5
Grand RapidsMar 18 – Apr 1Apr 15 – Apr 22Aug 8 – Aug 15
WarrenMar 3 – Mar 17Mar 31 – Apr 7Aug 29 – Sep 5
Sterling HeightsMar 12 – Mar 26Apr 9 – Apr 16Aug 22 – Aug 29
Ann ArborMar 17 – Mar 31Apr 14 – Apr 21Aug 8 – Aug 15
LansingMar 13 – Mar 27Apr 10 – Apr 17Aug 11 – Aug 18
Clinton TownshipMar 12 – Mar 26Apr 9 – Apr 16Aug 22 – Aug 29
FlintMar 18 – Apr 1Apr 15 – Apr 22Aug 8 – Aug 15
DearbornMar 9 – Mar 23Apr 6 – Apr 13Aug 23 – Aug 30
LivoniaMar 13 – Mar 27Apr 10 – Apr 17Aug 13 – Aug 20
CantonMar 6 – Mar 20Apr 3 – Apr 10Aug 22 – Aug 29
TroyMar 8 – Mar 22Apr 5 – Apr 12Aug 20 – Aug 27
WestlandMar 2 – Mar 16Mar 30 – Apr 6Aug 25 – Sep 1
Farmington HillsMar 13 – Mar 27Apr 10 – Apr 17Aug 15 – Aug 22
KalamazooMar 10 – Mar 24Apr 7 – Apr 14Aug 16 – Aug 23
WaterfordMar 11 – Mar 25Apr 8 – Apr 15Aug 18 – Aug 25
WyomingMar 18 – Apr 1Apr 15 – Apr 22Aug 8 – Aug 15
ShelbyMar 8 – Mar 22Apr 5 – Apr 12Aug 20 – Aug 27
Rochester HillsMar 8 – Mar 22Apr 5 – Apr 12Aug 20 – Aug 27
SouthfieldMar 13 – Mar 27Apr 10 – Apr 17Aug 15 – Aug 22
West Bloomfield TownshipMar 11 – Mar 25Apr 8 – Apr 15Aug 18 – Aug 25
TaylorMar 2 – Mar 16Mar 30 – Apr 6Aug 25 – Sep 1
PontiacMar 8 – Mar 22Apr 5 – Apr 12Aug 20 – Aug 27
Saint Clair ShoresMar 11 – Mar 25Apr 8 – Apr 15Aug 20 – Aug 27
Royal OakMar 3 – Mar 17Mar 31 – Apr 7Aug 29 – Sep 5
NoviMar 13 – Mar 27Apr 10 – Apr 17Aug 15 – Aug 22
Dearborn HeightsMar 13 – Mar 27Apr 10 – Apr 17Aug 13 – Aug 20
Battle CreekMar 12 – Mar 26Apr 9 – Apr 16Aug 17 – Aug 24
KentwoodMar 18 – Apr 1Apr 15 – Apr 22Aug 8 – Aug 15
RedfordMar 13 – Mar 27Apr 10 – Apr 17Aug 13 – Aug 20

Showing the 30 most populous of 120 Michigan cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Michigan cities.

Frequently Asked Questions

When should I plant broccoli in Michigan?

In a typical Michigan location, start seeds indoors Mar 12 – Mar 26, then transplant outdoors Apr 9 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 29 in Port Huron and as late as Apr 28 in Cadillac. For a fall crop, plant around Aug 17 – Aug 24.

When is the last frost in Michigan?

The average last spring frost in Michigan ranges from April 19 in Port Huron to May 19 in Cadillac, based on NOAA 1991–2020 climate normals.

How long do broccoli take to grow?

Broccoli typically take 55–80 days from planting to harvest. Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Other Crops in Michigan

When to plant broccoli in other states

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