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The feminized cannabis strain Killer A5 Haze by ACE Seeds is a potent, long-flowering sativa, with THC percentages between 23 and 30% and a very high yield. Killer A5 Haze is sure to delight growers fond of old-school Dutch sativas.

Seeds per pack

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Type and Genetics

The feminized cannabis seeds Killer A5 Haze by ACE Seeds are a result of crossing A5 Haze x Malawi Killer. This results in a feminized hybrid with a predominant sativa strain that elevates this strain to a new level of quality.


It grows vigorously and is highly branched.

There are 4 distinct phenotypes which are distinguished by their resemblance to the parents;

  • Haze Dominant Phenotype: Distinguished by its greater resemblance to the Colombian sativa that is part of the HazeA genetics. It produces buds with a very good ratio of flowers to leaves. Buds with many re-flowerings. Flowering 75-90 days.
  • NL/Haze Phenotype: The indica parent (Northern Lights) stands out, moderate size, shorter flowering. Incense aroma with floral and meaty notes. Abundant re-flowering. Flowering time 66-80 days.
  • Haze/Malawi Phenotype: Balanced sativa between Haze A and Malawi, the flowerings are not as abundant as in the previously mentioned phenotypes. Presents a taste of incense, oriental woods with a background of Malawi. Flowers in 75-85 days.
  • Malawi Silver Phenotype: This is the phenotype most influenced by the Malawi genetics, it has the highest yield, packed with trichomes. Very potent. Completes flowering in 75-85 days.

Aroma and Taste

The flavor developed by this strain is defined by its parents' terpene profile, offering different experiences depending on the phenotype. 


Killer A5 Haze by ACE Seeds can have up to THC of 23 - 30%. The cerebral discharge is overwhelming, bringing joy to every last cell of the electric-neuronal framework, which lights up like a Christmas tree. Some growers have reported dry mouth, so having a bottle of water at hand is recommended. 


It flowers with large buds. The size and density of the buds, despite being a sativa, make a warm, dry autumn or a greenhouse preferable.

The yield is very high indoors and outdoors. The Malawi Killer phenotype is the most productive.

Flowering Indoors

It will be ready with 63 -84 days of flowering, after the appropriate growth phase.

It develops very well using the SCROG (Screen of Green- green grid) technique

Flowering Outdoors

It is harvested in late October to early November in the Northern Hemisphere and late April/ early May in the Southern Hemisphere.

Sativa/Indica Percentage

80 % sativa - 20 % indica


THC 23-30 %  

La Huerta’s Opinion

Killer A5 Haze by ACE Seeds isn't one of the easiest strains to grow due to its long flowering period, but the wait pays off in quality and yield. 

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
Wooden flavour
Haze strain
Landrace strain
Other characteristics
Humidity resistant

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