KOS – Hemmy Heavy BX1

This product is currently out of stock and unavailable.


The father is the legendary Cherry Hemmingway male. A hybrid of a landrace Bhutan, and Rez Dog’s Firecracker (Williams Wonder x NYC Diesel both pre-2000 versions). The female, KOS’s own Darkling Sativa, a cross of the Vietnam Black jungle sativa (landrace) and the F3 Cherry Bomb; out of Hawaii. Called Black Forrest. The Cherry Bomb was an intoxicating massive yielding genotype with insane vigor; the Cherry Bomb was made using 3 Hawaiian cultivars including Puna Budder and Elephant Ear, also in the Cherry Bomb mix was the legendary Cherry AK47. The male used for the Darkling sativa was a C99.

This backcross was done using the male Cherry Hemmingway, so it is: CH male X Darkling Sativa female (Hemmy Black); I then selected a Hemmy Black female that exhibited strong Darkling Sativa expressions in her morphology. I pollinated her using the same (clone of) P1 male Cherry Hemmingway that created the Hemmy Black hybrid. Don’t worry about me using a male to backcross to, in this case I happen to know that all Cherry Hemmy males carry severe resin production genes that are extremely dominant.

This Hemmy Heavy variety from KOS should result in some of thee most pungent cat-pissy (like old school Haze) smelling and tasting buds ever. Now if you are not experienced with any true “cat piss” strains of cannabis, I know it sounds counter intuitive to tell you but, this is one of the most addictive terpene expressions for so many connoisseurs, including myself bigtime. Try it and you’ll see what I mean.

ATTENTION: the Hemmy Heavy will only be available for a short time due to limited numbers; so, grab some now if you want the chance to grow some of these potentially (high probabilities) deadly potent and large yielding plants that are almost certain to express the old school “cat piss” terpenes.


Please do not sprout these on a 24/0 photoperiod and KOS recommends 16/8 for sprouting and until 30 days old. Always allow plants to get at least 55 days old from sprouting, before starting to flower for maximum resin production. KOS always recommends organically growing our gear for the full appreciation of smells and flavors. Remember that clones work best in containers and seed plants work best in the ground.

I would not recommend this hybrid for humid conditions during flowering, like coastal growing outdoors or in greenhouses without humidity control. The Cherry Hemmingway has been known to mold badly outdoors in high humidity, with both powdery and bud rot due to her massively dense and large colas. Another thing I would take into account is your flowering environment, make sure your flowering areas are DARK during the flowering darkness cycles. The Cherry Hemmingway does not handle any kind of light poisoning events well, and in about 10 days will show hermaphrodite responses in the form of some bananas.

On the up-sides big are huge yields, insane vigor, fast rooting response from cuttings, deadly smells and flavors with some SERIOUS cat-piss phenos.

Points that are important to consider when purchasing this variety are:

  • Must have excellent air exchange, and air circulation.
  • Must be pitch black darkness during flowering without any light poisoning.
  • Must have humidity control indoors during flowering. She’s all good flowering between 30-60% humidity (RH).
  • Better as an indoor choice than outdoor, depending on outdoor humidity.

Additional information

Weight 1 g
Pack Size