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The feminized cannabis strain Arjan's Ultra Haze #1 by Green House Seeds has a very clear and mental effect, ideal for creative activities, meditation, yoga, music, etc. Arjan's Ultra Haze #1 is very productive and has a delicious taste of mint and musk, with a background of incense and hints of sandalwood that will delight Haze lovers.

Seeds per pack

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Type and genetics

The feminized cannabis seeds Arjan's Ultra Haze #1 of Green House Seeds are the result of crossing (Neville's Haze x Cambodian) x Laos to obtain a strain of Haze genetics with a very powerful and lucid effect, great taste and high yields. It adapts very well to branch bending techniques such as LST.


Arjan's Ultra Haze #1 has a very vigorous growth and develops a typical "sativa" pine-shaped structure; very tall plants that grown in direct soil and under the right conditions can reach 4 meters in height. It is a very branched morphology, the branches come out forming an angle of 45° with the stem, so the sun reaches all parts of the plant easily.

Aroma and flavor

The flavor of this strain is strong and it is dominated by tones of musk and mint, with an aftertaste of incense and hints of sandalwood.


The effect is powerful, cerebral, clear and long lasting. A strain that favors meditation, stimulates creativity and is ideal for activities such as yoga, music or any other type of artistic discipline.


This acclaimed strain produces a generous amount of long, quite dense and heavy buds (an unusual feature in a predominantly sativa genetics), with long and thick stigmas or pistils. Indoors, this strain can yield up to 700 g per m2 and outdoors up to 1150 g per plant grown in direct soil.

Flowering in indoor cultivation

In indoor crops it can be harvested after 13-14 weeks of flowering, after the relevant growth phase.

Flowering in outdoor crops

Outdoors it is harvested the first week of November in the Northern Hemisphere and the first week of May in the Southern Hemisphere . The great quality and, above all, the enormous quantity of its harvests will compensate the waiting time.

Percentage sativa/indica

80% Sativa - 20% Indica


  • THC: 16.22%
  • CBD 0.19%
  • CBN: 0.53%


1st HTCC 2006.

La Huerta's opinion

Arjan's Ultra Haze #1 by Green House Seeds prefers medium/low doses of fertilization. EC should be kept around 1.5 in growth and 1.7 - 1.8 in flowering. In addition, it is recommended to apply an extra amount of phosphorus and potassium from the 4th week of flowering. It's an ideal strain for sativa lovers looking to maximize their harvests.

Data sheet

Types of seeds
Feminized seeds
Indica sativa percentage
More sativa (stimulating)
Flowering time
Long Flowering (+65 days)
Potent effect
Citric flavour
Incensed/Haze flavour
Mint flavor
Spiced flavour
Haze strain
Other characteristics
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