Michigan planting calendar

Using Michigan’s average last spring frost of May 10 and first fall frost of October 5 — about 148 frost-free days. USDA zones 4a, 4b, 5a, 5b, 6a, 6b.

Michigan covers a very wide range of climates. Treat this as a starting point and adjust to your local frost dates — the calendar generator lets you enter them.

CropStart indoorsTransplant / sow outFall sowingFirst harvest
CeleriacFeb 15 – Mar 1May 3 – May 20Aug 18 – Sep 7
OnionFeb 22 – Mar 8Apr 12 – Apr 29Jul 18 – Aug 17
LeekFeb 22 – Mar 8Apr 19 – May 6Aug 4 – Sep 23
CeleryFeb 22 – Mar 8May 3 – May 20Aug 18 – Sep 27
RosemaryFeb 22 – Mar 8May 10 – May 27Aug 15 – Sep 14
EggplantMar 1 – Mar 15May 24 – Jun 10Aug 4 – Aug 24
ParsleyMar 1 – Mar 15Apr 19 – May 6Jul 17 – Aug 3Jul 5 – Jul 25
ShallotMar 1 – Mar 15Apr 12 – Apr 29Oct 9 – Oct 26Jul 18 – Aug 17
Bell PepperMar 8 – Mar 22May 17 – Jun 3Jul 23 – Aug 22
Chili PepperMar 8 – Mar 22May 17 – Jun 3Aug 2 – Sep 1
Green Onion / ScallionMar 8 – Mar 22Apr 5 – Apr 22Jul 31 – Aug 17Jun 11 – Jul 1
ThymeMar 8 – Mar 22May 3 – May 20Jul 24 – Aug 8
OreganoMar 8 – Mar 22May 3 – May 20Jul 29 – Aug 8
MintMar 8 – Mar 22Apr 26 – May 13Jul 12 – Aug 1
SageMar 8 – Mar 22May 3 – May 20Jul 24 – Aug 8
TarragonMar 8 – Mar 22Apr 26 – May 13Jul 2 – Aug 1
GingerMar 8 – Mar 22May 24 – Jun 10Jan 26 – Mar 27
TurmericMar 8 – Mar 22May 24 – Jun 10Jan 26 – Mar 27
TomatoMar 15 – Mar 29May 10 – May 27Jul 16 – Aug 10
TomatilloMar 15 – Mar 29May 10 – May 27Jul 31 – Aug 25
Ground CherryMar 15 – Mar 29May 10 – May 27Jul 26 – Aug 15
Sweet MarjoramMar 15 – Mar 29May 10 – May 27Jul 16 – Aug 5
Lemon BalmMar 15 – Mar 29Apr 26 – May 13Jul 12 – Aug 1
Shiso (Perilla)Mar 15 – Mar 29May 10 – May 27Jul 26 – Aug 15
KaleMar 22 – Apr 5Apr 12 – Apr 29Jul 10 – Jul 27Jun 8 – Jun 23
BroccoliMar 22 – Apr 5Apr 19 – May 6Jun 26 – Jul 13Jun 25 – Jul 20
CauliflowerMar 22 – Apr 5Apr 19 – May 6Jun 26 – Jul 13Jun 25 – Jul 25
CabbageMar 22 – Apr 5Apr 12 – Apr 29Jun 26 – Jul 13Jun 18 – Jul 28
Brussels SproutsMar 22 – Apr 5Apr 19 – May 6Jun 5 – Jun 22Jul 25 – Aug 24
OkraMar 29 – Apr 12May 17 – Jun 3Jul 13 – Jul 28
BasilMar 29 – Apr 12May 17 – Jun 3Jun 23 – Jul 23
Collard GreensMar 29 – Apr 12Apr 12 – Apr 29Jul 17 – Aug 3Jun 13 – Jul 3
KohlrabiMar 29 – Apr 12Apr 12 – Apr 29Jul 31 – Aug 17Jun 3 – Jun 18
Endive & EscaroleMar 29 – Apr 12Apr 19 – May 6Jul 17 – Aug 3Jul 20 – Aug 4
RadicchioMar 29 – Apr 12Apr 19 – May 6Jul 10 – Jul 27Jun 25 – Aug 4
ChayoteMar 29 – Apr 12May 17 – Jun 3Sep 21 – Oct 21
Malabar SpinachMar 29 – Apr 12May 17 – Jun 3Jul 18 – Aug 2
Summer SavoryMar 29 – Apr 12May 10 – May 27Jul 11 – Jul 26
PeaMar 31 – Apr 19Jul 17 – Aug 3May 30 – Jun 14
SpinachMar 31 – Apr 19Aug 7 – Aug 24May 12 – May 20
Mache (Corn Salad)Mar 31 – Apr 19Jul 31 – Aug 17May 20 – Jun 4
LettuceApr 5 – Apr 19Apr 19 – May 6Jul 31 – Aug 17May 26 – Jun 25
Swiss ChardApr 5 – Apr 19Apr 19 – May 6Jul 17 – Aug 3Jun 15 – Jun 25
Bok Choy / Pak ChoiApr 5 – Apr 19Apr 19 – May 6Jul 31 – Aug 17May 31 – Jun 15
Fennel (Bulb)Apr 5 – Apr 19Apr 26 – May 13Jul 3 – Jul 20Jul 7 – Aug 1
Napa CabbageApr 5 – Apr 19Apr 19 – May 6Jul 17 – Aug 3Jun 15 – Jul 10
Bitter MelonApr 5 – Apr 19May 17 – Jun 3Jul 18 – Aug 7
CucamelonApr 5 – Apr 19May 17 – Jun 3Jul 28 – Aug 7
New Zealand SpinachApr 5 – Apr 19May 10 – May 27Jul 6 – Jul 26
PeanutApr 5 – Apr 19May 10 – May 27Aug 25 – Oct 14
WatercressApr 5 – Apr 19Apr 19 – May 6Aug 14 – Aug 31Jun 15 – Jun 25
Luffa (Loofah Gourd)Apr 5 – Apr 19May 17 – Jun 3Aug 22 – Oct 21
BeetApr 7 – Apr 26Jul 24 – Aug 10Jun 1 – Jun 21
RadishApr 7 – Apr 26Aug 21 – Sep 7May 4 – May 12
ArugulaApr 7 – Apr 26Aug 14 – Aug 31May 12 – May 22
Fava Bean (Broad Bean)Apr 7 – Apr 26Jul 31 – Aug 17Jun 26 – Jul 11
TatsoiApr 7 – Apr 26Aug 7 – Aug 24May 17 – Jun 1
MizunaApr 7 – Apr 26Jul 31 – Aug 17May 17 – May 27
CucumberApr 12 – Apr 26May 17 – Jun 3Jul 3 – Jul 20Jul 13 – Aug 2
Zucchini / Summer SquashApr 12 – Apr 26May 10 – May 27Jul 3 – Jul 20Jul 1 – Jul 16
Winter SquashApr 12 – Apr 26May 10 – May 27Aug 5 – Sep 4
PumpkinApr 12 – Apr 26May 10 – May 27Aug 15 – Sep 14
Cantaloupe / MuskmelonApr 12 – Apr 26May 17 – Jun 3Aug 2 – Aug 22
WatermelonApr 12 – Apr 26May 17 – Jun 3Aug 2 – Sep 1
RhubarbApr 12 – Apr 29
HorseradishApr 12 – Apr 29
SunflowerApr 12 – Apr 26May 10 – May 27Jul 26 – Aug 25
CarrotApr 14 – May 3Jul 10 – Jul 27Jun 18 – Jul 8
TurnipApr 14 – May 3Aug 7 – Aug 24May 29 – Jun 18
Mustard GreensApr 14 – May 3Aug 7 – Aug 24May 19 – Jun 3
Rapini (Broccoli Raab)Apr 14 – May 3Jul 31 – Aug 17May 29 – Jun 18
ChervilApr 14 – May 3Aug 7 – Aug 24May 29 – Jun 18
ChivesApr 19 – May 6
AsparagusApr 19 – May 6
SorrelApr 19 – May 6
PotatoApr 21 – May 10Jul 5 – Aug 24
Cilantro / CorianderApr 21 – May 10Jul 24 – Aug 10Jun 10 – Jul 5
SalsifyApr 21 – May 10Aug 14 – Sep 23
BorageApr 21 – May 10Jul 31 – Aug 17Jun 20 – Jul 10
Globe ArtichokeApr 26 – May 13
ParsnipApr 28 – May 17Aug 11 – Sep 10
DillMay 5 – May 24Jul 31 – Aug 17Jun 19 – Jul 9
Bush BeanMay 12 – May 31Jul 10 – Jul 27Jul 6 – Jul 16
Pole BeanMay 12 – May 31Jul 16 – Jul 26
Sweet CornMay 12 – May 31Jul 16 – Aug 25
Edamame (Soybean)May 12 – May 31Jul 31 – Aug 25
Amaranth (Leaf)May 12 – May 31Jun 16 – Jul 6
Lima BeanMay 19 – Jun 7Jul 28 – Aug 27
Southern Pea (Cowpea)May 19 – Jun 7Jul 23 – Aug 22
Sweet PotatoMay 24 – Jun 10Aug 29 – Sep 28
RutabagaJun 19 – Jul 6
GarlicOct 16 – Nov 2

Windows are ~1–2 week bands around each date. Frost dates are a statewide average from NOAA/NCEI normals; your town may differ by two weeks or more. Calendar year 2026.