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Thai A5 Haze Feminized – ACE Seeds

Price range: 16,20€ through 78,50€

A cross between a very good quality Thai from the Golden Triangle and an A5 Haze (NL # 5 x Haze A) from Nevil, where the Thai “tunes” the psychoactivity of A5 Haze towards a much cleaner, cerebral, euphoric and energetic effect!

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Additional information

WeightN/A
Genetic Type

Hybrid, Pure Sativa

Harvest Time

12-14 Weeks

Harvest Yield

400-500g/ m2, 500-600g / m2

Seed Gender

Feminized Seed

Seedbank

ACE Seeds

Country

Spanish

Effect

Energetic, Euphoric

Genetic Family

Haze, Landrace

Quality

Annibale's Choice, Most Potent

Taste and Smell

Lemon / Citrus, Spices / Incense / Cheese

Where to Grow

, , , ,

THC

High THC (20%), Mid THC (15%), Very High THC (25%)

Description

Thai A5 Haze (Limited Edition) – ACE Seeds

Feminized Thai A5 Haze by ACE Seeds Genetics represents the union between a rare Thai landrace from Chiang Mai and the legendary A5 Haze clone by Neville (Northern Lights #5 x Haze C).

This cross has been stabilized to offer a phytochemical profile dominated by aromas of incense and meat, typical of the most powerful old-school Hazes. The union of pure tropical genetics and the most sought-after Haze lineage of the 90s.

Thai A5 Haze Feminized in brief

Feminized Thai A5 Haze by ACE Seeds Genetics is a sativa-dominant hybrid (90%) with a flowering cycle that requires patience and advanced technical control. It features a vigorous vegetative structure with medium-long internodal spacing, designed to maximize yield in open-canopy systems.

According to technical data from Seedfinder, the cross between the Chiang Mai Thai and the A5 Haze produces plants with THC levels that can exceed 20%.

Technical Sheet

  • Genetics: Thai Chiang Mai x A5 Haze (Northern Lights #5 x Haze C)
  • Type: 90% Sativa / 10% Indica
  • Flowering: 12 – 14 weeks
  • Harvest: November / December (Outdoor)
  • Height: 120 – 160 cm (Indoor), 250 – 350 cm (Outdoor)
  • Cannabinoids: THC 15 – 24%, low CBD, CBG up to 1.5%
  • Terpenes: Terpinolene, ocimene, myrcene
  • Yield: 400 – 500 g/m² (Indoor), 600 – 800 g/plant (Outdoor)
  • Techniques: SCROG, LST, Supercropping
  • Extracts: High wash hash yield with incensed profiles
  • Effect: Electric, cerebral, psychedelic, and very persistent

Cultivation management and yield parameters

Feminized Thai A5 Haze by ACE Seeds Genetics requires conservative EC management, especially during the vegetative phase to avoid root burn. The plant stretch during the first 4 weeks of flowering is massive, often tripling the plant’s initial height.

It is necessary to intervene with containment techniques as early as the second week to keep the apical tips at a safe distance.

Indoor

In an indoor environment, Feminized Thai A5 Haze by ACE Seeds Genetics responds optimally to an 11/13 photoperiod from the very start of flowering.

VPD must be maintained between 1.1 and 1.4 kPa to promote trichome development without stressing the transpiration of the thin leaves. Proper management of substrate dryback between waterings is fundamental to prevent root asphyxiation.

Outdoor

Outdoors, Feminized Thai A5 Haze by ACE Seeds Genetics expresses its maximum potential in tropical or Mediterranean climates with long autumns. As reported on ICMag, the phenotypes of this line show extremely high botrytis resistance thanks to the airy structure of the buds.

Calcium and Magnesium consumption becomes critical from week 8, when the plant accelerates resin production.

Terpene profile analysis

The biochemical profile of Thai A5 Haze is a return to the origins, dominated by pungent notes of incense, leather, liver, and old wood.

The citric component of the Thai balances the organoleptic heaviness of the A5 Haze, adding nuances of lemon and tropical flowers. During curing, these molecules stabilize, transforming the initial herbaceous smell into a complex and persistent bouquet.

Effect and stimulation: what to expect

Feminized Thai A5 Haze by ACE Seeds Genetics is perceived by users as one of the most powerful and mental sativas currently available. The effect is traditionally associated with a wave of cerebral energy that can alter sensory perception and increase creativity.

It is often sought after by those who want to manage long mental work sessions, provided they have a high tolerance to cannabinoids.

Technical advantages

  • Feminized Thai A5 Haze by ACE Seeds Genetics offers superior phenotypic stability compared to many modern Haze hybrids, ensuring uniform plants.
  • The wash hash yield is remarkable, with trichomes that detach easily during mechanical washing thanks to their glandular morphology.
  • The open structure with generous internodal spacing facilitates natural ventilation, reducing reliance on forced aeration systems.

Errors that ruin the harvest

  • The critical error with Thai A5 Haze is excess nitrogen during mid-flowering, which can trigger unwanted new plant stretch.
  • Harvesting before the twelfth week is a common mistake that compromises the maturation of complex terpenes and the potency of the final effect.
  • Low light intensity in the lower part of the plant leads to buds that are too airy, drastically reducing the total dry weight.

Who Thai A5 Haze Feminized is not recommended for

Feminized Thai A5 Haze by ACE Seeds Genetics is not recommended for those with small grow cabinets without experience in SCROG.

It is discouraged for growers operating in regions with short, rainy autumns, as late maturation requires sunlight until December. It is not the ideal choice for those seeking a relaxing or sedative effect, given its energetic nature.

Thai A5 Haze Feminized vs other queens

Thai A5 Haze vs Panama

While Panama offers denser buds and a more physical effect, Thai A5 Haze focuses entirely on cerebral stimulation and incense aroma. Panama is easier to manage indoors due to a less aggressive plant stretch compared to the Thai hybrid.

Thai A5 Haze vs Malawi

Malawi is known for a nearly devastating narcotic power, while Thai A5 Haze maintains superior mental clarity despite the intensity. In terms of cultivation, Malawi requires higher EC regimes, while Thai A5 prefers lighter mineral nutrition.

Thai A5 Haze vs Oldtimer’s Haze

Oldtimer’s Haze is a pure tropical sativa with an infinite flowering time, while Thai A5 Haze is faster and more productive thanks to Northern Lights. The effect of Thai A5 is considered more modern and punchy compared to the ethereal character of Oldtimer’s.

FAQ

What is the flowering time of Feminized Thai A5 Haze by ACE Seeds Genetics?

In an indoor environment, it requires between 12 and 14 weeks, with some phenotypes potentially reaching 15 weeks.

How much stretch should be expected from Thai A5 Haze?

The plant stretch can reach 300% or 400% of the initial volume, making early training of the branches mandatory.

What is the THC value of Thai A5 Haze?

Tests report consistent values between 15% and 24%, depending on light quality and nutrient solution management.

Is Feminized Thai A5 Haze by ACE Seeds Genetics mold resistant?

Yes, it possesses a very high natural resistance thanks to well-spaced calyxes that prevent moisture stagnation in the buds.

Can I grow it with a 12/12 photoperiod from seed?

Yes, this is a recommended technique to manage the indoor height of Feminized Thai A5 Haze by ACE Seeds Genetics, although it reduces branching.

 

A limited feminized edition available while stocks last.

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