Blog/F1 is a hypothesis, not a product

Genetics · 30 Aug 2026 · 5 min

F1 is a hypothesis, not a product

The first generation of a cross is where we look. It is rarely what we pack.

F1 means first filial generation: two parents, one cross, the children. Hybrid vigour is real. So is scatter. You will see more shapes, more noses, more failures. That is useful on the hunt. It is a poor souvenir pack if the page promised a keeper.

The house method: make the cross, pop large numbers, score, run it twice, then lock — backcross or line-breed — until the pack does the same thing twice. Breeding page has the eight steps. F1 sits at step two. The bag sits at step six.

On this catalogue

Black Punch (Di Frutti × Tropicanna Punch) and Velvet Cake are selected hybrids we have already run. They are not a first pop we liked the name of. Orange Gas is Orange Apricot Bx1 × Skull Cap — a cross of work we already did, not a mystery F1 from a forum.

If another bank sells you an F1 as a finished line, that is also information. Souvenir seed. 18+.

Seeds are sold as souvenirs and for genetic preservation. 18+. Cultivation of cannabis is illegal in the UK without a Home Office licence. These notes are not a grow guide.

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