Medical Mass (Royal Queen Seeds)

Medical Mass by Royal Queen Seeds is an award-winning CBD cannabis strain that contains a whopping 11% CBD! This is nicely accompanied by a THC content of 10%, giving a potent, but completely functional high – allowing people to get on with their day while easing aches and pains. Medical Mass flowers in 7-8 weeks, producing up to 550g/m² indoors, or 550g/plant outdoors.

Genetics 60% indica - 40% sativa
Parents Critical Mass x CBD dominant plant
Flowering period 7-8 weeks
THC% 10%
CBD% High
Yield (indoor) 500-550g/m²
Height (indoor) 60-100cm
Yield (outdoor) 500-550g/plant
Height (outdoor) 120-150cm
Harvest time (outdoor) End of September
Available as Feminized seeds
Seed bank Royal Queen Seeds
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Starting from € 25.00
1 seed € 25.00
3 seeds € 25.00
5 seeds € 53.00
10 seeds € 85.50
  in stock

Easy Germination

Easy Germination

Cannabis Propagator

Cannabis Propagator


Zativo caters to private customers only, and does not supply commercial or industrial growers with large amounts of cannabis seeds. If we have reason to suspect that the ordered seeds are destined for growing cannabis on a larger-than-private scale, we reserve the right to dismiss that specific order. 


Medical Mass: Massive CBD-fueled Power by Royal Queen Seeds

Medical Mass is one of the best CBD-strains known to mankind. With its 11% CBD and 10% THC content, it has the power to heal the masses; with its 60% indica dominance, Medical Mass will feel very relaxing - one can experience pain being washed away.

Royal Queen Seeds decided to scrutinize various strains and produce the ultimate CBD-cultivar. After many years of developing and stabilizing their strains, Medical Mass emerged as the winner. In fact, this cultivar received the 3rd place in 2015 High Life Hemp Fair for the best Medical Marijuana strain.

Its heritage spans between several CBD-potent strains, together with Critical Mass, which boosted its yields significantly. With 500-550g/m² in yields and 60-100cm in height, Medical Mass develops solid amounts of bud. For outdoor settings, one can expect 500-550g/plant and 120-150cm in height.

Medical Mass finishes its flowering period after 7-8 weeks. When growing Medical Mass outdoors, make sure to harvest at the end of September. This cultivar is relatively easy to grow, so if you’re a beginner or an advanced grower, Medical Mass is for you.

Not only does Medical Mass provide growers with solid yields, it also provides buds with amazingly dank aromas. The full-flavored taste will contribute to the delicious experience.

If you wish to start CBD treatment for any type of medical condition, make sure to consult it with your local physician. There’s no reason to wait, this CBD-filled splendor will deliver your daily dose of CBD and a moderately relaxed and medicated high.

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