Key Lime Jack is Maven Genetics' Bling Cheesecake x Jack Herer, bred in collaboration with Happy Dreams Genetics. Sweet, sharp, slightly sour citrus on the inhale flips to skunky and earthy on the exhale. What people report is a bubbly, long-running head buzz that stays sharp while the body loosens, which makes this one of Maven's clearer daytime-leaning selections.
Where It Comes From
Maven Genetics is a California indoor operation that runs its catalog as a curated library rather than a firehose, and Key Lime Jack sits in the active sativa section of it. The strain came out of a collaboration with Happy Dreams Genetics, and both houses take credit on Maven's own listing rather than one quietly absorbing the other.
The name tells you both halves. Key Lime is the tart, sweet citrus direction the newer dessert parent brings. Jack is Jack Herer, the Sensi Seeds cultivar named for the American author and activist whose 1985 book The Emperor Wears No Clothes did more for the legalization argument than most organized campaigns managed.
Putting his name in a strain title is not a neutral marketing choice. It is a reference point, and it arrives with expectations about clarity and cerebral character that a mediocre cross would fail in public. Maven and Happy Dreams took that on knowingly.
The Cross
The documented direct cross is Bling Cheesecake x Jack Herer, with Maven Genetics and Happy Dreams Genetics sharing the credit. Maven classifies the result as sativa. Jack Herer is by far the better-documented parent: Sensi Seeds built it as a Haze-leaning cross carrying Afghani and Skunk family weight, and it is known for expressing across a genuinely wide range.
Some Jack Herer phenotypes land airy and cerebral, others denser and more grounded. That variability is inherited, so Key Lime Jack's exact character depends partly on which side of Jack Herer showed up in the selection. Bling Cheesecake is the sweeter, dessert-forward half, and it is what pulls the citrus toward lime and cream instead of straight Haze brightness.
The signature is the flip. Bright citrus fills the room when the jar opens, then hands off to skunk and earth on the way out, with lime peel, lemon, light cream, wood and spice around the core. Limonene and terpinolene commonly lead the terpene panels, with caryophyllene and pinene behind them, though those numbers are batch-specific and no single panel defines a cultivar.
Maven runs it as indoor flower: green, resinous, bright pistils, substantial trichome coat. Structure and color still move with environment, harvest timing, dry, cure, and how long the jar has been sitting open. Larger amounts turn hazier and more physically settling, and dose, tolerance, method and setting shift the outcome as much as genetics do.
What It Left Behind
Its footprint is distribution and hash. Maven runs Key Lime Jack across flower, prerolls and vape formats through California retail, and Nasha has produced hash from Key Lime Jack grown by Full Moon Farms. That last part is the real signal, because holding up in solventless is a harder test than holding a spot on a menu.
The High Rise Take
Key Lime Jack is Maven and Happy Dreams' Bling Cheesecake x Jack Herer: tart lime and cream into skunk and earth, clear and uplifting rather than heavy. Read up on Jack Herer next to understand why this one stays sharp.