Purple Haze
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Purple Haze

also known as Purple Haze #1, Purple Haze Auto

Sativa-dominantTHC-dominant

Purple Haze is a sativa-leaning Haze selection with a disputed origin; separate versions are sold under the name by ACE Seeds, White Label, G13 Labs and Positronics.

Research as of 09/21/2026

Stakes and ties for the side branches, generous root space, permanent ventilation: what breeders write about growing Purple Haze fits a vigorous sativa from the Haze line. Behind the name, however, there is no single, uniform plant, but a series of versions with different lineages, different seed types and widely diverging flowering-time figures.

Cultivation:

Positronics describes medium-thick stems, large, thinly serrated leaves and a Christmas-tree or candelabra-like branching pattern with wide internodes for its selection. The breeder recommends plenty of water, ample root space and permanent ventilation, early flowering initiation indoors, and outdoors sowing not before June or July so growth does not get out of hand. It does not consider the plants suitable for balconies or terraces.

For outdoor cultivation, Sensi Seeds names a warm, sunny climate of Mediterranean character. According to G13 Labs, the coloring that gives the strain its name only appears at low temperatures toward the end of flowering: leaves and calyxes then shift from dark green to lavender or purple, occasionally toward blue. Strain descriptions rate the cultivation as undemanding.

Versions from Different Breeders:

ACE Seeds lists Purple Haze as a selection of purple and reddish phenotypes from its own Oldtimer's Haze population, as a 100 % sativa from Mexican, Colombian, South Indian and Thai lines, sold exclusively as regular seeds, with a flowering time of 16 to 20 weeks and a medium to low yield.

The feminized versions turn out noticeably shorter. White Label states 50 to 65 days, a height of 110 to 150 cm and around 100 g per plant, with 80 % sativa and 20 % indica from Purple Thai and a Haze line. For its cross of Afghan and Haze, G13 Labs names 65 to 70 days, 18 % THC, 500 to 600 g/m² indoors and 700 g per plant outdoors, with harvest there from mid to late October. Positronics puts Purple Haze #1 at 70 days of flowering, 400 g/m² indoors, 350 g per plant outdoors, 22 % THC and 0.2 % CBD. ILGM states 9 weeks of flowering, 17 to 20 % THC and 0.1 % CBD. With Purple Haze Auto, Original Sensible Seeds offers an autoflowering cross with ruderalis that is ready for harvest after around 40 days of flowering and 70 to 75 days from sowing; outdoors, plants between 100 and 150 cm have been documented, with the phenotypes varying.

Genetics and Origin:

Purple Thai and Haze are usually named as the parents. This is not documented in a reliable way. One strain database simply classifies Purple Haze as a purple phenotype of the Haze line, which traces back to Santa Marta Gold, Wacky Weed and other Colombian sativas, and notes that the original plant was never sold as seed.

Several accounts circulate about its origin. A 2020 account places it in the 1970s in Santa Cruz, California, and attributes it to the Haze Brothers and Sam 'the Skunkman,' though it describes the tradition itself as hearsay. A 2026 publication names DJ Short instead and stresses that the plant traded under the name today is not identical to the one from the 1960s. The name comes from Jimi Hendrix's 1967 song, not the other way around.

Aroma and Flavor:

Descriptions mention sweet, earthy berry notes with grape and a sharp spicy component, along with floral hints named as violet or lavender. Sensi Seeds describes the scent of the growing plant as sweet and pungent, becoming earthier and more penetrating with a berry component after drying. G13 Labs describes its aroma differently, as fresh, woodsy, earthy, musky and woody with a metallic touch, while at ACE Seeds the profile is darker, with black licorice and wild blackberry alongside wood, spice and incense. Myrcene is named as the dominant terpene, followed by caryophyllene and limonene.

Effects:

User reports and strain descriptions describe a cerebral, alert effect with euphoria, uplifted mood, talkativeness, drive and increased creativity, without pronounced physical heaviness. Sensi Seeds attributes a light relaxing undertone to the indica portion. Side effects named include dry mouth, dry eyes, dizziness, headache and paranoid reactions.

THC and CBD Content:

Breeder figures range from 18 % at G13 Labs, 17 to 20 % at ILGM, to 22 % at Positronics. ILGM puts CBD at 0.1 %, Positronics at 0.2 %. Strain descriptions set the range lower, at 14 to 19 %.

Community Experiences:

Grow reports paint an inconsistent picture. In an indoor grow from 2016, the plants turned out wide and bushy, with small, very sticky flower clusters; the grower expected around 70 days of flowering. Another documented run ended after 135 days from germination to harvest with a dry weight of 368.54 g per plant. There, the plant had been topped above the fourth node, defoliated and trained through two SCROG net levels; the flower clusters stayed long and rather slender, but were easy to trim thanks to the small, resin-covered leaves.

In this run, the smell was described as sweet and citrusy with a candy note, and the taste as citrus, cream and sourness. In other reports too, the plants tolerated topping without noticeable setbacks.

This article is for informational purposes only and is not a substitute for medical or therapeutic advice. If you have any health-related questions, please consult a doctor or another qualified professional.

Effects & aroma

From reviews and experience reports — subjective, not a medical statement

Reported as positive
energetic100 %
euphoric100 %
happy100 %
Reported side effects
dizzy50 %
Headache50 %
paranoid50 %
Aroma & flavor
Spicy 50 % Wood 50 % Sour 50 %

Percentages: share of reviews mentioning this property.

Cannabinoids & terpenes

Levels vary by batch, phenotype and cultivation — values are indicative

THC
14–19 %
0 %35 %
Terpene profile
  • #1
    MyrceneHerbs
  • #2
    CaryophyllenePepper
  • #3
    LimoneneCitrus

Cultivation

Indicative values from breeder data and grow reports — varies by phenotype and setup

Flowering & harvest
Breeder data
Outdoor harvest
mid to late October · Northern hemisphere
Difficulty, environment & climate
Breeder data
Difficulty
Easy
Indoor
suitable
Outdoor
suitable
Climate
Warm, Mediterranean

Warm, sunny climate of Mediterranean character for outdoor cultivation.

Morphology
Growth habit
Christmas-tree shape
Internode spacing
Long
Trichome coverage
High
Coloration
According to G13 Labs, leaves and calyxes shift from dark green to lavender or purple, occasionally toward blue, at low temperatures toward the end of flowering.

Positronics describes medium-thick stems, large, thin and heavily serrated leaves, as well as a Christmas-tree or candelabra-like branching pattern with wide internodes. In a grow report from 2016, by contrast, the plants turned out wide and bushy with small, very sticky flower clusters; in another report the flower clusters stayed long and rather slender and were easy to trim thanks to small, resin-covered leaves.

Training
Topping
Tolerated
ScrOG
Tolerated
Support needed
Yes

Positronics recommends stakes and ties for the large branches, generous root space, plenty of water and permanent ventilation; early flowering initiation indoors, and sowing not before June or July outdoors. In grow reports, plants were topped above the fourth node, and topping, defoliation and two SCROG net levels were used.

Other
Phenotype variance
High

Genetics & origin

Origin
Cross
Purple Thai × Haze
Origin
United States, Santa Cruz, California
Type
Sativa-dominant
Available as seeds
Regular, Feminized, Autoflowering
Flowering types (all versions)
Photoperiod, Autoflowering

Versions by different breeders

Several breeders sell their own versions under this name. Each figure comes from the respective breeder.

G13 LabsPurple Haze
Different genetics
PhotoperiodFeminized
Flowering
65–70 days
Yield indoor
500–600 g/m²
Yield outdoor
700 g/plant
THC
18 %

Listed as a cross of Afghan and Haze, 70 % sativa and 30 % indica. Outdoor harvest mid to late October. Coloring shifts from dark green to lavender or purple, occasionally toward blue, at low temperatures toward the end of flowering.

Original Sensible SeedsPurple Haze Auto
Different genetics
AutofloweringFeminizedAutoflowering
Flowering
40 days
Height outdoor
100–150 cm

Cross of Purple Haze and an unknown ruderalis. 70 to 75 days from sowing to harvest, yield given as high, high tolerance to pests and diseases, marked phenotype variance.

ace SEEDSPurple Haze
Reproduction
PhotoperiodRegular
Flowering
16–20 weeks

Selection of purple and reddish phenotypes from the breeder's own Oldtimer's Haze population; listed as 100 % sativa from Mexico Sativa, Purple Highland Colombian, South India Sativa and Thailand Sativa. Yield per m² given as medium to low, outdoor only in tropical or subtropical climates.

More breeders (3): ILGM, Positronics, White Label

Community

6 grow and experience reports reviewed Community reports
Consensus

Reports describe a cerebral, alert effect with an uplifted mood, talkativeness and increased creativity, as well as very resinous flower clusters. In cultivation, space requirements and the need for support are seen as the defining issue; topping and SCROG were used without reported problems.

Divergent reports

The growth form is described inconsistently: sometimes wide and bushy with small flower clusters, sometimes tall with long, rather slender colas. The smell profile also varies, from sweet and citrusy to earthy-berry. Figures for flowering duration range from around 8 to 9 weeks to 70 days in a single run.

Reported values from individual grows
Expected flowering duration in an indoor grow report from 2016
70 days
Total duration from germination to harvest in a documented grow
135 days
Dry yield per plant in the same grow
368.54 g

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Similar strains

Related genetics, same dominant terpene, similar effects and aroma — excluding direct parents and descendants

Reviews (1)

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Weedy_Gonzales@Weedy_Gonzales
3/16/2025
happy euphoric energetic excited lively Tropical Lime Lemon

Sehr geiles Weed eines meiner absoluten Favoriten in Sachen Geschmack

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