Mulberry F3 Auto

Mulberry F3 Auto is a fruity, weighty Night Owl Seeds line made from Auto Blueberry x Tyrone Stomper, available as feminised autoflowering seeds. It puts syrupy blueberry right at the front, then adds the bigger Stomper-style structure and a darker mix of citrus, funk and fuel underneath.

The original Mulberry cross was gifted to Night Owl some years ago, and the line has been worked rather than rushed. For this F3 generation, Night Owl used an open pollination of the F2s to keep a broad spread of traits within the line. That makes it appealing if you enjoy hunting through related plants for different flavour and structure nuances.

Plants are expected to be medium to large, with powerful satellite branches that can reach nearly the same height as the main cola. The structure is closely tied to Tyrone Stomper, but XL in size. Expect sturdy branches carrying super-dense, tight nuggets, with a smaller spear shape capped by a flower cluster.

Mulberry F3 Auto is suitable for indoor or outdoor cultivation, with a lifecycle of 75–85 days from sprout. Yield is listed at 2–4 ounces. This is not described as a tiny, single-cola auto; it’s better matched to growers who like branching plants and have room for medium to large autoflowering growth.

The flavour profile is the big draw. Syrupy-sweet blueberry dominates the progeny, backed by piney citrus and sappy funk. Some plants add sharper floral, grapey fuel notes, giving the line more bite and variety than a simple sweet berry profile.

The effect is strong from the first pull. In larger doses, Night Owl describes a couch-locked finish with short blasts of paranoia, so Mulberry F3 Auto is best approached as a heavy, potent auto rather than a light daytime option.