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Taking two of the best from the US, G13 Haze is a visionary creation straight from the heart of Amsterdam. The combination of the legendary G13 and Hawaiian Haze strains, G13 Haze has become a cult hero in its own right. With an average THC of 21%, ranging up to and above 24% in some cases, this is a must try for any cannabis connoisseur.

G13 Haze is rated as one of the best high yield strains. Given its legendary status, we have decided to dedicate a full review of it here.

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G13 Haze Seeds Overview

The incredible pedigree, combining the powerful G13 indica and energising Hawaiian Haze sativa strains, makes G13 Haze a true classic. Providing powerful relaxation for the body and an invigorating boost for the mind, there is little wonder why it was awarded best overall strain at the 2007 High Times Cannabis Cup, after having been awarded 2nd Prize in 2006.


As you might expect of a descendant of the famous G13, the G13 Haze strain delivers a strong yet relaxing stone with a pleasing numbing effect all over the body. This is contrasted by the more stimulating, energy boosting nature of the Haze, creating a more euphoric and uplifting high.

Widely renowned for its strength, with THC levels sometimes eclipsing 24%, the long lasting high comes on quickly and really lasts. CBD levels are low, generally measured well below 1%.

Taste, smell and appearance

The first thing you will notice are the furry looking bright orange hairs covering the tightly packed green buds, followed by a strong aroma of terpenes including Mycrene, Caryophyllene and Humulene accented by subtle undertones of spicy incense, citrus fruits and an earthy hop like aroma. Fresh citrus and sweet spice flavours are prevalent on the inhale, with the exhale providing a deeper and more earthy taste.

The fruity and spicy taste of G13 Haze is something quite special and well worth savouring. The pronounced smell of the normal Haze terpenes makes way for fresh hints of citrus and pine when cracking open the bud. On inhale there is a subtle sweetness and mild spiciness, driven by flavours of cinnamon, mandarin and lemon. This is nicely balanced on exhale where the drier and earthier character of the strain makes its presence known.


Although 80% sativa, G13 Haze remains a medium/short plant that only reaches a height of 100 – 110 cm. tall. It is a perfect match for SOG growing systems but also responds favourably to SCROG set-ups as well. Indoor yields are very good at 550 gr/m2 in 65 – 70 days of flowering and its buds are very thick and dense. When grown outdoors in northern latitudes harvest will be during the second or third weeks of October.

You can find more help, ideas and tips from our growing guide.

Medical benefits

G13 Haze is often used to help fight off negative emotions and feelings thanks to the euphoria and happiness induced by the strain. People who suffer from PTSD, OCD, stress, , anxiety and depression can benefit from the mood boost and clarity.

G13 Haze has powerful antiemetic properties that are helpful to patients undergoing harsh chemotherapy treatments. The strain’s ability to suppress nausea and induce hunger ultimately helps to improve the quality of people’s lives.

Our verdict on G13 Haze Seeds

The G13 Haze strain is an undeniable classic and must try, with its powerful calming effects and enduring high delivering an unmistakable experience. Prized for its strength, this is definitely one to ease into for all but the most experienced smokers out there.

Buy G13 Haze seeds

Seeds are sold in packs of 5, 10, 50 or 100. The more you buy the bigger the discount.

And don’t forget the promo codes!

Not sure which seed bank is the best for you to source marijuana seeds from? – Check out our seed banks reviews.

Additional information

Seed type


THC content

22 – 25%


500 -600 g/sm

Flowering time

12 – 14 weeks


Tall: 180 – 220 cm

Strain type

Sativa dominant


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