Using strains such as Jack herer, afghani and super bud, blackskull seed bank have created a unique range of strains. They generally have very fast finishing times, offer big yields and produce a top quality product at amazingly low prices.

Critical mass is a well-known big production strain that was created by crossing big bud and skunk. We took critical mass and crossed it with Skull Ryder and refined it until it was 100% autoflowering. The resulting autoflowering strain is a strong smelling auto skunk that fills the grow room with a pungent aroma and produces taller than average plants with slender leaves and long buds.

Flowering time: 60-70 days
THC levels: 10% - 14%
CBD levels: medium
Yields: 30g-60g
Height: 60cm - 90cm
Genetics: Ruderalis 25% / Indica 37.5% / Sativa 37.5%
Strains: Skull Ryder X critical mass