

Jack Herer 5 seeds
Jack Herer Seeds – Sativa Classic with approx. 20% THC
What is Jack Herer? Jack Herer by Vision Seeds is a feminised, photoperiod cross of Skunk #1 × Northern Lights #5 × Haze with 80% Sativa and 20% Indica. Indoors it flowers for about 9 weeks, grows 150 to 180 cm tall and, according to the strain description, yields 450 to 550 g/m² with around 20% THC. The light green, resinous flowers smell skunky, spicy and slightly musky; the effect sets in quickly and is described as euphoric and energising. The strain needs space and plenty of light – in the Sativa strains category. Available in packs of 5 and 10 seeds.
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Manufacturer Information
Genetics & Origin of Jack Herer
The strain is named after the cannabis activist Jack Herer; according to the strain description, it has been one of the most popular Sativa-dominant strains worldwide for decades. The Vision Seeds version is based on Skunk #1, Northern Lights #5 and Haze and is given as 80% Sativa and 20% Indica. The description lists Jack Herer as a Cannabis Cup winner without naming the year or competition in more detail. The THC content is about 20%. The seeds are feminised and photoperiod – flowering only begins when you switch the light cycle to 12/12. Jack Herer is available from several breeders: for comparison, you will also find Jack Herer by Sensi Seeds in our range. A Skunk #1 is also available individually, for example Skunk #1 by Barney's Farm.
Who Is Jack Herer For?
Jack Herer is a tall-growing Sativa with a stimulating character. It suits:
- Sativa fans looking for an invigorating daytime strain
- Indoor growers with enough headroom for 150 to 180 cm and strong lighting
- Outdoor gardeners who would like to harvest at the end of September
- Lovers of spicy Skunk and Haze aromas with a musky note
- Creative people who appreciate a euphoric but not hectic effect
It is less suitable for low tents and weak lamps – the strain needs space and light. You can find strains with a similar focus under High Yield & Short Flowering.
Growing Jack Herer: Indoor & Outdoor
Indoor Growing
In the grow room, Jack Herer flowers for about 9 weeks and reaches 150 to 180 cm. Vision Seeds states 450 to 550 g/m² and points out that the strain needs space and light. So plan for sufficient headroom and a powerful lamp. To limit the height, you can switch to 12/12 early, or top or tie down the main shoots; a net helps to distribute the shoots evenly. The flowers are very resinous and smell strongly of Skunk – a carbon filter therefore makes sense. You will find the basics on light, training and climate in the Growpedia.
Outdoor Growing
Outdoors, Jack Herer grows into a tall, branching and very resinous plant. According to the strain description, harvest falls at the end of September. Vision Seeds describes the yield as medium to high; the breeder does not state a figure per plant or a plant height in centimetres for outdoors. Give the plant a sunny spot with enough distance from its neighbours and support the long side shoots before the flowers get heavy. You can find more strains for open ground under outdoor seeds. Only grow where it is legal to do so.
Effect, Aroma & Flavour of Jack Herer
Jack Herer forms light green, resinous flowers with a distinctive scent: sharp, skunky and spicy with musky undertones. The flavour is described as earthy-sweet with the sharpness typical of Haze. Vision Seeds speaks of a complex, classic terpene profile but names no individual terpenes and no lab profile. According to the strain description, the effect can be felt almost instantly – euphoric, uplifting and energising, without becoming hectic. It is considered mentally stimulating and suits creative activities or serves as a motivational boost in everyday life. With around 20% THC, Jack Herer is strong. How intense the effect is depends on dose and individual tolerance.
Note: Effect information is based on manufacturer data and user experience and does not constitute medical advice.
Why Buy Jack Herer at United Seedbanks?
United Seedbanks is not an anonymous mail-order seller but a specialist shop for cannabis seeds. You get Jack Herer from us as original seed stock from Vision Seeds – with honest strain data instead of advertising promises.
- Original genetics from Vision Seeds – Jack Herer as the breeder's feminised seeds, in packs of 5 and 10 seeds.
- Personal expert advice – we know our range and help you choose the right strain and pack size.
- Discreet shipping – neutrally packed, free shipping from €100.
- Secure payment of your choice – credit card, bank transfer or Bitcoin.
- Verified quality – carefully stored seeds for reliable germination.
This gives you Jack Herer with expertise, discretion and dependable service from a single source. The breeder's full range is available on the Vision Seeds page.
Frequently Asked Questions about Jack Herer
What genetics does Jack Herer by Vision Seeds have?
The strain is a cross of Skunk #1, Northern Lights #5 and Haze. Vision Seeds gives 80% Sativa and 20% Indica.
How long does Jack Herer flower?
Indoors about 9 weeks after the switch to 12/12. Outdoors, according to the strain description, harvest falls at the end of September.
How tall does Jack Herer grow?
150 to 180 cm indoors. For open ground, Vision Seeds describes a tall, branching plant but does not state a figure.
How much yield does Jack Herer deliver?
Indoors, the strain description states 450 to 550 g/m². For outdoors it only says “medium to high”, without a figure per plant.
How does this Jack Herer differ from the Sensi Seeds version?
Both bear the same name but come from the lines of different breeders. You will also find Jack Herer by Sensi Seeds in the shop.