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The Experts Say...

Buy Colossus Feminised (Ace Seeds) from Discreet Seeds today. With a great range of seeds, amazing customer service, what's not to love.

If there's anything you can't find on our website, including any questions you may have for Colossus Feminised (Ace Seeds), just get in touch!

Quick Points

  • In Stock
  • Feminised
  • Mostly Sativa (80% Sativa, 20% Indica)

Buy Colossus
With Confidence:

  • Bulk discounts available

  • Fast, track & trace delivery

  • Free seeds with every order

  • 100% Discreet secure shipping

The Breeder...

Ace Seeds

Ace Seeds

Colossus is a consistent best seller at Ace Seeds. Carefully crafting the cannabis seeds, Ace Seeds is a world-class breeder...

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Colossus Cannabis Seeds

The still unbeatable Golden Tiger, Ace Seeds most potent, trippy sativa queen with the highest THC content, crossed with the also formidable Neville’s NL#5/Haze (A variant), which due to its extreme potency, quality, and yield dominated the development of the best Haze hybrids of the 80s and 90s.

Colossus is a hefty sativa dominant hybrid (80%) with tremendous vigour, yield and branching. Even so, it is manageable for an experienced indoor sativa grower. Outdoors, planted in soil early in spring, it can easily produce 4 × 4 meter monsters with outstanding yields. Its lineage is similar to Killer A5 Haze (A5 Haze/Malawi), but with the addition of Double Thai (Meao/Hmong Thai × Koh Chang Thai), making Colossus more cerebral, stimulating, and lemony than Killer A5 Haze.

Despite its genetic complexity, Colossus proves remarkably consistent in both quality and character, with a main common phenotype flowering around 11–12 weeks, and a slightly more sativa variant that requires an additional 1–2 weeks.

The first phenotype is slightly more compact, with formidable floral architecture, large dense colas with excellent bag appeal and high flower/leaf ratios. The second phenotype showcases near pure sativa expressions with wilder, less compact flower structures.

In both cases, they hit with really potent sativa and sativa/indica effects (it can be hard to finish a joint) with strong Thai character, whose intensity, long duration and dramatic shifts make for a colossal impact, even for the most seasoned users.

The most common phenotype, with more compact flowers, delights with lemony Thai terpenes from Ace Seeds Golden Tiger (Koh Chang Thai dominant) mother: vivid, vibrant, dense, sweet, and expansive. Citrus notes are accompanied by sweet florals, mango and incense, with a deep earthy, gassy and hashy background. Very refined and modern, without the woody or herbal harshness of some pure Thais; instead, it has a fine and silky texture, making it overall the most suitable for commercial selections.

The second near pure sativa phenotype, shares the citrus and sweet floral Thai profile, but spicier and wilder.

Initially propels with high Thai vibes and a crazy, exciting, cerebral and expansive psychoactivity. The main dense flower phenotype soon becomes heavier, colder, and introspective, progressing to a really strong sativa/indica, with heavy relaxing indica body sensations and a dissociative finish. Very dangerous when combined with alcohol or operating machinery.

The less dense flower variant keep the wild Thai character, with an almost pure sativa psychoactivity: cerebral, stimulating, expansive, motivating, more cheerful and joyful, with higher ceiling and vibrations, not so heavy physically and without a destructive end.
In any case, a proper 4–6 month curing period is well worth it, as it significantly enhances intensity and depth.

Contains the following monoterpenes: very high beta myrcene content, high limonene, moderate-low linalool and beta pinene, and lower amounts of alpha pinene and trans ocimene. Sesquiterpenes: moderate-high beta caryophyllene content, moderate alpha humulene and guaiol, and lower amounts of alpha bisabolol.
Indoors, outstanding results can be achieved in terms of quality and production with a correct and abundant feeding and strong light intensity. Ace Seeds recommend 11 (light)/13 (darkness) photoperiod for the flowering indoors, in order to boost the flowering, and to avoid reflowerings or excessive stretching in early flowering.

Very suitable for SOG crops due to its great yield in the main cola, or for SCROG, horizontal or network growing due to its excellent yield in the lateral branches and its vigorous reaction to pruning.

Outdoors, it is especially suitable for outdoor cultivation in tropical or subtropical climates, although it can be cultivated with very good results in warm coastal climates of mild autumn (similar to the Mediterranean) up to latitudes close to 43º.

Ace Seeds recommend moderate-high nutrient levels for the first, more tamed phenotype throughout its development, while the second, slightly slower phenotype prefers more moderate nutrient levels. When properly grown, the yield is huge, especially outdoors.
Pack Size:1Seed Type:FeminisedGenetics:Golden Tiger 2.0 Thai Koh Chang Dominant x Nevilles A5 HazeTHC:20.24%CBD:0.04%CBG:0.49%Indica/Sativa:Mostly Sativa (80% Sativa, 20% Indica)Flowering:11-13 WeeksTaste:Floral, lemon, mango, incense, earthy, gassy, hashy backgroundSmell:Floral, lemon, mango, incense, earthy, gassy, hashy backgroundEffect:Psychoactive, stimulating, motivatingHarvest:Early November
Genetics:Golden Tiger 2.0 Thai Koh Chang Dominant x Nevilles A5 Haze
THC:20.24%
Height:Medium
Flowering Time:11-13 Weeks
Indica/Sativa:Mostly Sativa (80% Sativa, 20% Indica)
Harvest:Early November
Taste:Floral, Lemon, Mango, Incense, Earthy, Gassy, Hashy Background
Smell:Floral, Lemon, Mango, Incense, Earthy, Gassy, Hashy Background
Effect:Psychoactive, Stimulating, Motivating
Indoor/Outdoor:Indoor / Outdoor

Colossus Cannabis Seeds

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Colossus Cannabis Seeds

The still unbeatable Golden Tiger, Ace Seeds most potent, trippy sativa queen with the highest THC content, crossed with the also formidable Neville’s NL#5/Haze (A variant), which due to its extreme potency, quality, and yield dominated the development of the best Haze hybrids of the 80s and 90s.

Colossus is a hefty sativa dominant hybrid (80%) with tremendous vigour, yield and branching. Even so, it is manageable for an experienced indoor sativa grower. Outdoors, planted in soil early in spring, it can easily produce 4 × 4 meter monsters with outstanding yields. Its lineage is similar to Killer A5 Haze (A5 Haze/Malawi), but with the addition of Double Thai (Meao/Hmong Thai × Koh Chang Thai), making Colossus more cerebral, stimulating, and lemony than Killer A5 Haze.

Despite its genetic complexity, Colossus proves remarkably consistent in both quality and character, with a main common phenotype flowering around 11–12 weeks, and a slightly more sativa variant that requires an additional 1–2 weeks.

The first phenotype is slightly more compact, with formidable floral architecture, large dense colas with excellent bag appeal and high flower/leaf ratios. The second phenotype showcases near pure sativa expressions with wilder, less compact flower structures.

In both cases, they hit with really potent sativa and sativa/indica effects (it can be hard to finish a joint) with strong Thai character, whose intensity, long duration and dramatic shifts make for a colossal impact, even for the most seasoned users.

The most common phenotype, with more compact flowers, delights with lemony Thai terpenes from Ace Seeds Golden Tiger (Koh Chang Thai dominant) mother: vivid, vibrant, dense, sweet, and expansive. Citrus notes are accompanied by sweet florals, mango and incense, with a deep earthy, gassy and hashy background. Very refined and modern, without the woody or herbal harshness of some pure Thais; instead, it has a fine and silky texture, making it overall the most suitable for commercial selections.

The second near pure sativa phenotype, shares the citrus and sweet floral Thai profile, but spicier and wilder.

Initially propels with high Thai vibes and a crazy, exciting, cerebral and expansive psychoactivity. The main dense flower phenotype soon becomes heavier, colder, and introspective, progressing to a really strong sativa/indica, with heavy relaxing indica body sensations and a dissociative finish. Very dangerous when combined with alcohol or operating machinery.

The less dense flower variant keep the wild Thai character, with an almost pure sativa psychoactivity: cerebral, stimulating, expansive, motivating, more cheerful and joyful, with higher ceiling and vibrations, not so heavy physically and without a destructive end.
In any case, a proper 4–6 month curing period is well worth it, as it significantly enhances intensity and depth.

Contains the following monoterpenes: very high beta myrcene content, high limonene, moderate-low linalool and beta pinene, and lower amounts of alpha pinene and trans ocimene. Sesquiterpenes: moderate-high beta caryophyllene content, moderate alpha humulene and guaiol, and lower amounts of alpha bisabolol.
Indoors, outstanding results can be achieved in terms of quality and production with a correct and abundant feeding and strong light intensity. Ace Seeds recommend 11 (light)/13 (darkness) photoperiod for the flowering indoors, in order to boost the flowering, and to avoid reflowerings or excessive stretching in early flowering.

Very suitable for SOG crops due to its great yield in the main cola, or for SCROG, horizontal or network growing due to its excellent yield in the lateral branches and its vigorous reaction to pruning.

Outdoors, it is especially suitable for outdoor cultivation in tropical or subtropical climates, although it can be cultivated with very good results in warm coastal climates of mild autumn (similar to the Mediterranean) up to latitudes close to 43º.

Ace Seeds recommend moderate-high nutrient levels for the first, more tamed phenotype throughout its development, while the second, slightly slower phenotype prefers more moderate nutrient levels. When properly grown, the yield is huge, especially outdoors.
Pack Size:1Seed Type:FeminisedGenetics:Golden Tiger 2.0 Thai Koh Chang Dominant x Nevilles A5 HazeTHC:20.24%CBD:0.04%CBG:0.49%Indica/Sativa:Mostly Sativa (80% Sativa, 20% Indica)Flowering:11-13 WeeksTaste:Floral, lemon, mango, incense, earthy, gassy, hashy backgroundSmell:Floral, lemon, mango, incense, earthy, gassy, hashy backgroundEffect:Psychoactive, stimulating, motivatingHarvest:Early November
Genetics:Golden Tiger 2.0 Thai Koh Chang Dominant x Nevilles A5 Haze
THC:20.24%
Height:Medium
Flowering Time:11-13 Weeks
Indica/Sativa:Mostly Sativa (80% Sativa, 20% Indica)
Harvest:Early November
Taste:Floral, Lemon, Mango, Incense, Earthy, Gassy, Hashy Background
Smell:Floral, Lemon, Mango, Incense, Earthy, Gassy, Hashy Background
Effect:Psychoactive, Stimulating, Motivating
Indoor/Outdoor:Indoor / Outdoor

The Experts Say...

Buy Colossus Feminised (Ace Seeds) from Discreet Seeds today. With a great range of seeds, amazing customer service, what's not to love.

If there's anything you can't find on our website, including any questions you may have for Colossus Feminised (Ace Seeds), just get in touch!

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The Breeder...

Ace Seeds

Colossus Feminised (Ace Seeds) is a consistent best seller at Ace Seeds. Carefully crafting the cannabis seeds, Ace Seeds is a world-class breeder...

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The Experts Say...

Buy Colossus Feminised (Ace Seeds) from Discreet Seeds today. With a great range of seeds, amazing customer service, what's not to love.

If there's anything you can't find on our website, including any questions you may have for Colossus Feminised (Ace Seeds), just get in touch!

Quick Points

  • In Stock
  • Feminised
  • Mostly Sativa (80% Sativa, 20% Indica)

Buy Colossus Feminised (Ace Seeds)
With Confidence:

  • Bulk discounts available

  • Fast, track & trace delivery

  • Free seeds with every order

  • 100% Discreet secure shipping

The Seedbank...

Ace Seeds

Colossus Feminised (Ace Seeds) is a consistent best seller at Ace Seeds. Carefully crafting the cannabis seeds, Ace Seeds is a world-class breeder...

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Page updated on 13/07/2026