Grass-O-Matic

Original Pioneers of Autoflowering Cannabis Genetics

One of the First — Still One of the Best

Grass-O-Matic helped shape the modern autoflowering scene long before it was mainstream. Known for precision breeding and unmatched reliability, they were among the first to bring high-quality, fast-finishing automatic genetics to serious collectors around the world.

Each strain from Grass-O-Matic is carefully developed to deliver stability, potency, and efficiency — proof that great things come in small packages. Their legacy continues to influence the next generation of auto breeders globally.

Collect authentic Grass-O-Matic seeds today — classic autoflowering excellence, only at Rhino Seeds.

Autoflowering Pioneers
Fast, Reliable Genetics
Expert Breeding Heritage
Consistent Performance & Quality
Available Now at Rhino Seeds

Grass-O-Matic cannabis seeds – pioneering autoflowering genetics with fast, stable and reliable performance

Auto Mass

This is Automatic Critical Mass - A fruitilicious high yielding auto from grassomatic! The buds form Auto Mass are rock hard, and have a complex aroma! - Apparently Auto Mass has 2 phenotypes, each w

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