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The feminized cannabis strain, Chronic by Serious Seeds, is an indica-dominant hybrid. It's the strain with the highest commercial appeal in the Serious catalog. High yield without compromising quality, fast flowering, potent cerebral and relaxing physical effects, and a sweet taste are the keys to this award-winning strain, a favorite of '90s rappers.

Seeds per pack

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Type and Genetics

These feminized cannabis seeds, Chronic by Serious Seeds, are the result of combining Northern Lights 1, 5 and 9, with Skunk and AK-47. The result is a high-quality, highly productive strain. This strain was refined in 2000 to increase its stability.


It grows with a large central stem and very few branches. Perfect for SOG (Sea of Green) techniques.

Aroma and Flavor

Chronic by Serious Seeds has a sweet and mellow flavor with floral notes. To fully express this strain's flavor potential, good drying and curing are needed.


Its effect is powerful and long-lasting, a pleasant cerebral and physical relaxation. Ideal for stress relief, for use after a long day or for calm enjoyment.


Indoor yields range between 350 - 800 g per m2, and outdoor yields between 800 - 1000 g per plant when cultivated in soil.

Flowering Indoors

Flowering is completed in 63 - 70 days, following the appropriate growth phase.

Flowering Outdoors

Outdoor harvests are ready by the end of October in the Northern Hemisphere and in the first half of April in the Southern Hemisphere. Medium height.

FIM or apical pruning is not recommended.

Sativa/Indica Percentage

50% Indica / 50% Sativa


  • THC 18%


  • 3rd prize Hydro Category - High Times Cannabis Cup Amsterdam 1994
  • 1st prize Indoor Category – La Bella Flor Cup Malaga 2003
  • 1st prize Hydro Category – HighLife BCN 2004,
  • 2nd prize Hydro Category – HighLife BCN 2004,
  • 2nd prize Outdoor Category – El Punto Cup, Malaga 2005
  • 3rd prize Solvent-Free Extracts Category – Green Skull Cup Cabezón de la Sal 2016

La Huerta’s Opinion

Chronic by Serious Seeds is an award-winning strain, easy to grow and highly productive. It requires a good drying and curing process to express the maximum flavor.

Data sheet

Types of seeds
Feminized seeds
Indica sativa percentage
50% S-I Hybrid (balanced)
Flowering time
Long Flowering (+65 days)
Medium effect
Flowery flavour
Sour flavour
Sweet/fruity flavour
Other characteristics
Award winning prize

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