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Jack Herer, a cannabis legend, offers a unique experience with its potent cerebral high and gentle body relaxation. Easy to grow and high-yielding, it is perfect for novices and experts alike. Enjoy its classic flavour and energising effects, which will keep you creative and happy for hours.
Jack Herer is a legend in the cannabis world, a strain that pays homage to the iconic cannabis activist of the same name. Developed by Sensi Seeds in the 90s, it is a hybrid that combines the best traits of Haze, Northern Lights #5 and Skunk. The result is a robust, majestic plant, famous for its incredible resin production and potent effect.
Jack Herer stands out for its impressive appearance. Its buds are huge, elongated and covered in a thick layer of trichomes that gives them a crystalline sheen. They range from medium to pale green and are speckled with orange pistils that make them even more appealing. They are also very resinous and give off an irresistible aroma of spice, wood and pine.
Looking for a classic strain with a clear, uplifting effect? Jack Herer won’t disappoint. With THC ranging from 15 % to 20 % and low CBD (<1 %), its effects are incredibly potent and long-lasting. Those who try it describe a feeling of energy, creativity and happiness that can last for hours. Ideal for daytime activities and creative projects, Jack Herer also brings a touch of relaxation that makes everyday tasks easier going.
Jack Herer buds are known for their classic old-school Dutch flavour and aroma: very herbal and spicy, with hints of pine wood. This profile is prized for its complexity and for the way it brings back the best coffeeshops of Amsterdam.
If discretion matters to you, bear in mind that Jack Herer buds are very smelly during flowering. For indoor grows, we recommend a good carbon filter or an ozone generator to keep the smell under control.
Jack Herer offers an unrivalled sensory experience. Its aroma is a perfect blend of spice, herbs and pine wood, with the distinctly herbal touch typical of the best old-school Dutch strains. When smoked, you will pick up spicy, woody notes that leave a lasting, pleasant taste on the palate, like the freshness of a pine forest.
The effects of Jack Herer are as potent as its aroma. With THC between 15 % and 20 % and low CBD (<1 %), this strain delivers an immediate cerebral high that boosts creativity, energy and good humour. Ideal for the daytime, its energetic, cheerful effect will keep you active for hours. Once the mental effect settles, a gentle body relaxation kicks in without making you drowsy.
The terpenes in Jack Herer are the real stars behind its aromatic profile and character. This strain is rich in alpha-pinene, which brings a fresh pine aroma and a crisp, clear-headed edge. Limonene adds a bright citrus touch that lifts the whole bouquet.
Other terpenes such as terpinolene and delta-3-carene contribute to its herbaceous, floral aroma and add complexity. Nerolidol, with its wood and apple fragrance, adds a soft, rounded undertone, making Jack Herer a balanced choice for many occasions.
Together, these terpenes not only enhance the flavour and aroma of Jack Herer but also shape its effect, a unique experience that combines physical relaxation with a stimulating mental high.
Jack Herer is not only easy to grow but also delivers impressive yields both indoors and outdoors.
Indoors, with the right conditions and a 300-350 W/m² LED setup, you can expect yields of up to 650 grams per square metre. Its flowering period is medium: it needs 10 to 12 weeks from the switch in photoperiod to be ready. There is a rare indica phenotype that can be ready in just 8 weeks, an interesting option if you are after a quick harvest.
Outdoors, Jack Herer can reach 2.5 to 3 metres in height if germinated in early spring and given enough space and good conditions. Under these circumstances, yields can easily reach 800 to 1000 grams per plant. Harvest usually falls between mid and late October, so it prefers climates with dry autumns, such as the Mediterranean.
Its flowering time and its ability to adapt to different growing methods make Jack Herer an ideal choice for both novice and experienced growers. The resilience inherited from Skunk and its vigour, especially with methods like SCROG and SOG, ensure optimal production and a healthy, robust plant.
If you are worried about not knowing how to grow, relax: Jack Herer is an ideal plant for beginners and experienced growers alike. It is known for being easy to grow and for adapting to different methods and environments.
Growing difficulty: Jack Herer is a sturdy, resilient plant, perfect for anyone new to growing cannabis. It inherits great resistance from Skunk, making it less sensitive to common mistakes and more tolerant of changes in environmental conditions.
Suitable climate and growing conditions: Jack Herer thrives in warm, sunny climates like the Mediterranean, with daytime temperatures between 20 °C and 27 °C and nights 4 °C to 5 °C cooler. Indoors, keep relative humidity between 55 % and 60 % during vegetative growth and lower it to 40 % in flower. At harvest, dropping it to 30 % helps optimise bud quality.
Pest and disease resistance: One of Jack Herer’s great advantages is its natural resistance to pests and diseases. Even so, it is wise to take preventive measures, such as using quality substrates (perlite, peat or coco coir) that retain moisture and keep the plant healthy. Good nutrition at every stage is key to maximising yield and plant health.
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Depending on latitude, outdoor Jack Herer starts flowering between early and mid-August. It is important to give the plant optimal conditions to maximise its yield and quality.
Jack Herer is a medium-flowering strain that is harvested from mid-October onwards. Keep an eye on the trichomes and other signs of ripeness to harvest at the right moment and get the best results.
Indoors, Jack Herer shows strong sativa dominance, which means vigorous growth. We recommend techniques such as SCROG or SOG to control its height and maximise production. Keep humidity and temperature at suitable levels to avoid problems and ensure a healthy, productive plant.
Jack Herer buds contain between 15 % and 20 % THC, while their CBD content is low, under 1 %. Its effects are very potent and psychoactive: energy, happiness and creativity that will keep you active for hours. It is ideal for daytime activities and creative projects.
Jack Herer is a sativa-dominant strain, with genetics of roughly 55 % sativa and 45 % indica. Sativas usually give an energising, stimulating cerebral high, ideal for the daytime and creativity, while indicas tend to be more relaxing and sedating, perfect for the evening. Jack Herer combines the best of both worlds: cerebral euphoria together with gentle body relaxation.
