KOS – Thunder Haze F1


NAME: Thunder Haze F1



LINEAGE: Cherry Thunderfuck x G13 Haze



SMELLS: Sweet and Sour, Candy and Acrid

FLAVORS: Citrus Sweet with Fuel/Honey Oil Notes 



PHOTOPERIODS: Sprouting 16/8 (or 12/12 for first 10 days), Veg 18/6, Flowering 12/12 

SATIVA/INDICA/RUDI RATIOS: About 60/40 Indica/Sativa, Somewhat Indica Dominant

HARVEST OUTDOORS: 1st Half of October – Northern Hemisphere 


BREEDING STYLE: Regular Seeds – Using Real Males – No Selfing, Reversing, or Femming Used Anywhere in KOS’ Breeding Philosophy


A very interesting hybrid here. These two P1 breeders bring a wealth of exotic and powerful flavors and smells to the party. The female G13 Haze was just covered in trichomes, even the main stem was very sticky. The Cherry Thunderfuck is also a very high resin producer. Both are serious knock you down high types, expect the Thunder Haze to not only kick your ass—seriously—but to also have some decent legs. 


Male Breeder(s) Deets: 1 superior (whorled) male of f1 Cherry Thunderfuck was the paternal P1 in this cross. This hybrid was made using my Cherry Bomb f3 male crossed to a real deal Matanuska Valley Thunderfuck about two decades ago. Strong terpenes of Cream Soda/Vanilla/Cherry and pungent dank, along with beefy floral expressions. 

Female Breeder(s) Deets: 1 female G13 Haze f2 breeder was used in this cross. The buds are very unique not showing a lot of pistils, they are there, they’re just protected—like old school sativas do it. Her calyxes are also very cool, weird, and all elongated. Very high resin production and the buds were also large and very dense. She wreaks with diesel fuel and sharp lemon citrus and has very high resin production.

Growing Instructions

The G13 Haze is a very hearty, stout, and stacked plant (morphology). The Cherry Thunderfuck is a bit more of a delicate plant, structurally speaking. The Matanuska Valley Thunderfuck was a bit of a “Creeper Phenotype” regarding morphology. If she is topped more than once she tends to like to start shooting out sideways. This trait is also visible in the Cherry Thunderfuck. So, the Thunder Haze should be a non-creeper phenotype but some individuals may express this.

Please do not sprout these on a 24/0 photoperiod and KOS recommends 16/8 for sprouting and until 30 days old. Then switch to 18/6. Alternately…

Using a flowering photoperiod of 12/12 on sprouts for their first 10 days above ground, then switching them to an 18/6 photoperiod will allow you to easily sex them at 30 days of age—give or take 3 days

Always allow plants to get at least 55 days old from sprouting, before starting to flower for maximum resin production. Plants grown from seed work much better outdoors in the ground than clones do. Alternately, clones work much better in containers than plants from seeds do. Sprout seeds in ambient temps of 75 – 85 deg. F. Obviously KOS always recommends organically growing our gear in living soil for the full appreciation of smells and flavors, among many other reasons—cheers!

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