The Haze family of cannabis strains dates back to the early 1970s and it soon became a favorite of sativa smokers thanks to its psychedelic properties and unique taste. However, the history of Arjan’s Ultra Haze #1 is largely unknown and unverified. Developed by Arjan Roskam, when it first appeared in the Green House Seed Company catalogue it was listed as a mix of Neville’s Haze, Super Silver Haze and Secret Haze. However, today it is listed as a cross between G13 and Haze.
The strain has a flavor profile of spice, flowers, fruit and mint, and it has been known to have THC levels as high as 22%. In 2004, Arjan’s Ultra Haze #1 won first prize in the High Times Cannabis Cup in the “People’s Cup” category, and second in the “Sativa Cup” category for its strong head high.
It is a highly potent strain that begins with a strong cerebral high that will normally mellow out and linger. The high can be very introspective and psychedelic and some smokers will find themselves feeling zoned out and confused. However, those with higher tolerance are likely to enjoy the high and it has been known to help with anxiety and stress.
When grown at home, Arjan’s Ultra Haze #1 can produce a yield of between 350 and 450 grams per square meter if a hydroponics setup is used. However, when grown outdoors, the flavors, aroma and effects are said to be far better. The strain needs to be fed more than other sativa strains do, and should be built up to a pH of 6.3, from 5.5 in hydroponics and 5.7 in soil, by the end of the ten to eleven week flowering cycle. EC levels should not be kept higher than 2.1 in hydroponics or 1.9 in soil.