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Region

Wisconsin and the Great Lakes

Photoperiods get 73 days between the daylight trigger and the killing freeze. 3,149 photoperiod varieties finish here, alongside 1,799 autoflowers.

Frost dates are Madison, WI’s: the median last spring and first autumn freeze across 1991 to 2020, from NOAA’s published US Climate Normals. Your own plot will differ by a week either way.

174Frost-free days
Aug 10Photoperiods flower from
73Days left after that
4,948Varieties that finish
MAYJUNJULAUGSEPOCTNOV
Typical autoflower, 90 days from seed
Veg
Flower
Typical photoperiod, flowering from Aug 10
Veg
Flower
Last frost May 1Killing freeze Oct 22
GerminationVegetativeFloweringFrost riskPast first frost

Showing 60 of them, split between the two flowering types and capped at three per breeder so a single large catalogue cannot fill the list.

VarietyBreederTypeDaysSowHarvestMargin
Lemon Cherry Cookies AutoFast BudsAUTO56 dMay 8Jul 3+111 d
Banana Purple Punch AutoFast BudsAUTO56 dMay 8Jul 3+111 d
CBD AutoPhoenix Cannabis SeedsAUTO56 dMay 8Jul 3+111 d
Black Cream AutoSweet SeedsAUTO56 dMay 8Jul 3+111 d
Strong Stuff AutoPhoenix Cannabis SeedsAUTO56 dMay 8Jul 3+111 d
Sweet Cheese AutoSweet SeedsAUTO56 dMay 8Jul 3+111 d
Cream Caramel AutoSweet SeedsAUTO56 dMay 8Jul 3+111 d
Auto White Widow x Big BudFemale SeedsAUTO56 dMay 8Jul 3+111 d
Sweet Cream AutoExpert SeedsAUTO56 dMay 8Jul 3+111 d
Glueberry AutoExpert SeedsAUTO56 dMay 8Jul 3+111 d
Blueberry Cookies AutoGarden of GreenAUTO56 dMay 8Jul 3+111 d
Sweetberry Cough AutoGarden of GreenAUTO56 dMay 8Jul 3+111 d
Super Kush AutoPhoenix Cannabis SeedsAUTO56 dMay 8Jul 3+111 d
Auto AKFemale SeedsAUTO56 dMay 8Jul 3+111 d
Original Auto RussianFast BudsAUTO56 dMay 8Jul 3+111 d
Auto Impala 64 HazeSumo SeedsAUTO56 dMay 8Jul 3+111 d
GGG2 Auto - Gorilla Infested GelatoDr. KripplingAUTO56 dMay 8Jul 3+111 d
Cookies N Cream AutoGarden of GreenAUTO56 dMay 8Jul 3+111 d
Auto BubbleFemale SeedsAUTO56 dMay 8Jul 3+111 d
Gelato AutoDouble SeedsAUTO56 dMay 8Jul 3+111 d
GGG1 Auto - Guy's Girl Scout Cookie GlueDr. KripplingAUTO56 dMay 8Jul 3+111 d
Sugar GOMGrassomatic SeedsAUTO56 dMay 8Jul 3+111 d
Auto Deep Purple HazeSumo SeedsAUTO56 dMay 8Jul 3+111 d
BlackBerry AutoLineage GeneticsAUTO56 dMay 8Jul 3+111 d
Caseus AutoV Elementum SeedsAUTO56 dMay 8Jul 3+111 d
Wedding Cake AutoPhilosopher SeedsAUTO56 dMay 8Jul 3+111 d
Homegrown CH.1 AutoHomegrown FantaseedsAUTO56 dMay 8Jul 3+111 d
Caramella AutoHomegrown FantaseedsAUTO56 dMay 8Jul 3+111 d
Monster Mash AutoExotic SeedAUTO56 dMay 8Jul 3+111 d
Zkittalicious AutoExotic SeedAUTO56 dMay 8Jul 3+111 d
Black BloodMedicann SeedsPHOTO6 dMay 1Aug 16+67 d
Supafreak MOLD-RESHumboldt Seed CompanyPHOTO40 dMay 1Sep 19+33 d
Purple Pineberry MOLD-RESConcrete Jungle SeedsPHOTO42 dMay 1Sep 21+31 d
Pineapple Muffin MOLD-RESHumboldt Seed CompanyPHOTO45 dMay 1Sep 24+28 d
Easy Sativa MOLD-RESFemale SeedsPHOTO49 dMay 1Sep 28+24 d
Purple Maroc MOLD-RESFemale SeedsPHOTO49 dMay 1Sep 28+24 d
Couchlock MOLD-RESBritish Columbia SeedsPHOTO50 dMay 1Sep 29+23 d
Big Bazooka MOLD-RESAnesia SeedsPHOTO55 dMay 1Oct 4+18 d
Eleven Roses Early Version MOLD-RESDelicious SeedsPHOTO55 dMay 1Oct 4+18 d
Afghani #1 MOLD-RESSensi SeedsPHOTO55 dMay 1Oct 4+18 d
Cotton Candy Kush Early Version MOLD-RESDelicious SeedsPHOTO55 dMay 1Oct 4+18 d
Kera Classic - Kera Outdoor Hurricane MOLD-RESKeraseedsPHOTO55 dMay 1Oct 4+18 d
Amnesia Early Harvest MOLD-RESWorld of SeedsPHOTO55 dMay 1Oct 4+18 d
Afghan Kush Early MOLD-RESWorld of SeedsPHOTO55 dMay 1Oct 4+18 d
Pamir Gold MOLD-RESDutch PassionPHOTO55 dMay 1Oct 4+18 d
White Chronic MOLD-RESCream of the CropPHOTO55 dMay 1Oct 4+18 d
Bay Burger MOLD-RESDelicious SeedsPHOTO55 dMay 1Oct 4+18 d
Kera Classic - Sweet Seven Eleven MOLD-RESKeraseedsPHOTO55 dMay 1Oct 4+18 d
Afghan Kush x Black Domina MOLD-RESWorld of SeedsPHOTO55 dMay 1Oct 4+18 d
White Critical MOLD-RESOriginal Sensible SeedsPHOTO55 dMay 1Oct 4+18 d
El Alquemista MOLD-RESSamsara SeedsPHOTO55 dMay 1Oct 4+18 d
Kera Classic - Kera Critical MOLD-RESKeraseedsPHOTO55 dMay 1Oct 4+18 d
McEarly MOLD-RESKannabia Seed CompanyPHOTO55 dMay 1Oct 4+18 d
Exotic Kush MOLD-RESKush Brothers SeedsPHOTO55 dMay 1Oct 4+18 d
Indica Cream MOLD-RESKannabia Seed CompanyPHOTO55 dMay 1Oct 4+18 d
Cum Laude MOLD-RESPositronics SeedsPHOTO55 dMay 1Oct 4+18 d
Green Crack MOLD-RESHumboldt Seed OrganizationPHOTO55 dMay 1Oct 4+18 d
Fast Flowering Green Crack MOLD-RESHumboldt Seed OrganizationPHOTO55 dMay 1Oct 4+18 d
Ice Kush MOLD-RESAdvanced SeedsPHOTO55 dMay 1Oct 4+18 d
White Widow + MOLD-RESOriginal Sensible SeedsPHOTO55 dMay 1Oct 4+18 d

Frost dates are 50%-probability averages. A sheltered, south-facing spot buys you a week or two; a low frost pocket costs you the same. Treat the margin as a planning number, not a guarantee.

Other regions

Somewhere else

Every region the frost data covers, nearest continent first.

North America

Oceania

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South America

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