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Summary
Details
Cultivation
About Humboldt Seed Organization
Flowering Time
Short
Indoor Flowering
7-8 weeks
THC %
24 %
CBD %
0.1 %
Sativa %
5 %
Indica %
95 %
Indoor Yield
500-550 g/m2
Outdoor Yield
1000-2000 g/plant
Plant Height
200-300 cm
Effects
Long-lasting, Relaxing
Aroma & Flavors
Citrus, Earthy, Lemon, Spice

Humboldt Seed Organization


Founded in 2009 in Humboldt County, California, Humboldt Seed Organization (HSO) brings together a team of veteran breeders with over 25 years of hands-on cannabis experience. Their mission is to combine deep-rooted cultivation knowledge with scientific innovation to produce elite, stable genetics for growers of all sizes—from home enthusiasts to commercial operations.

HSO’s catalog features premium regular and feminized seeds developed through rigorous selection and phenotyping. Each strain is bred with a strong focus on quality, terpene expression, and performance in various environments.

What sets HSO apart is its commitment to regenerative agriculture and sustainability. The team promotes organic, closed-loop practices that respect nature and reduce environmental impact. This ethos extends to their global partnerships, including collaborations with ISO- and GMP-certified pharmaceutical labs and leading universities in the U.S. and Spain.

Now distributed in over 50 countries, HSO is internationally respected for pushing the boundaries of cannabis breeding while preserving the plant’s natural integrity. Overgrow is proud to offer these renowned genetics to South African growers seeking exceptional cannabis from the heart of California’s Emerald Triangle.

Environment
Indoor, Outdoor, Greenhouse
Skill Level
Beginner
Harvest Month
September (NH) | March (SH)
Yield
Xl
Flowering
Photoperiod
Photoperiod
Full Term
Sex
Feminized
Variety
Indica-dominant
Genetics
Kush X Skunk X Original OG
THC Levels
High
CBD Levels
Low
Take a trip back in time to 1990’s Dutch coffee shops, with this beautiful hybrid-version of a true classic. Master Kush is a feminised, indica-leaning cannabis strain that grows vigorously and produces bountiful crops in a short amount of time. Expect a citrusy and exotic aromatic profile that blends masterfully with the flavour bomb of lemon, earth and spices. The effect of Master Kush is moderate, lengthy and physically relaxing. She’ll melt the hearts and muscles of rookies and Indica-connoisseurs alike.

These feminised seeds have a classic heritage: Kush x Skunk x Original OG. A strong root system allows her to take up lots of nutrients, resulting in a strong support structure for her many hefty buds. True to her Indica nature, she can easily grow wider than she does tall.

Master Kush marijuana plants churn out high yields of stunning, resin-packed buds.

Expect a citrusy and exotic aromatic profile that blends masterfully with the scrumptious flavour bomb of lemon, earth and spices.

The effect of Master Kush is moderate, lengthy and extremely physically relaxing. She’ll melt the hearts and muscles of rookies and Indica-connoisseurs alike.

Master Kush has massive advantages, such as super-speedy growth and a strong root system. These need to be accounted for by providing enough nutrients to satisfy her hunger and monitoring her growth indoors. She thrives in dry, sunny, Mediterranean conditions or greenhouses, outdoors, as she’s not very fond of moisture.