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Sir Jack Feminized – Exotic Seeds


-20% discount on seeds in blister packs
-10% discount on seed packet



THC: 18-23%

Jack Herer S1

Additional information

Genetic Type

Hybrid, Pure Sativa

Harvest Time

10-12 Weeks, 8-10 Weeks

Harvest Yield

400-500g/ m2, 500-600g / m2

Seed Sex

Feminized Seed


Extremely High THC (30%), Very High THC (25%)

Where to Grow

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“Sir Jack” Feminized Cannabis Seeds – Exotic Seed

Sir Jack Feminized is definitely one of the clones we enjoyed working with at Exotic Seeds, selected around the year 2000, now presented in its ‘S1’ version. originally from the fantastic and famous Jack Herer from Sensi Seeds, Sir Jack is a robust plant, which helps support the weight of its large flowers.

With a thick resin coat, it is highly recommended for producing extractions, such as a very high quality “Ice-O-Lator”.

With Sir Jack it is recommended to monitor the humidity of the room, since the density of its flowers, with high relative humidity, can potentially cause the appearance of the typical Botrytis mold among the flowers.

But if there is something worth highlighting about Sir Jack it is his taste and his effect, which has earned him numerous awards throughout his career, with a clearly marked incense and lemon flavor, which persists on the palate, being a taste that is difficult to forget; and the effect of him, strongly cerebral, which leads to a more Indica-type body sensation, without being disabling.

This cannabis strain is not recommended for beginner smokers.


What does the Annibale Seedshop team think?

Exotic Seed’s Sir Jack is a legendary old-school cannabis strain; beyond its truly intense citric and haze flavour, this plant can guarantee even growers with little experience satisfactory harvests of that tasty old herb that is always present in Amsterdam coffee shops, but which is so difficult to find on the street. Recommended especially for collectors and researchers of powerful effects!


More information about Sir Jack Feminized by Exotic Seeds







Jack Herer S1


Taste of Sir Jack

Sir Jack Feminized has a sweet and intense flavor of lemon and incense.



It hits the brain with classic haze style, but deeply relaxing the muscles of the body after the first hour of initial euphoria.


Flowering Times

The flowering period is just 8-10 weeks, with a super yield of over 650 g/m².

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