Watermelon Zkittlez
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Watermelon Zkittlez

also known as Watermelon Z, Wmz, Watermelon Skittles

Sativa-dominantTHC-dominant

Watermelon Zkittlez comes from Dying Breed Seeds in Mendocino and traces back to Watermelon Zum Zum. Depending on the source, the cross partner is given differently.

Research as of 10/12/2026

Watermelon Zum Zum is the parent on which descriptions of the original California line agree, usually with the addition #3; for the cross partner of Watermelon Zkittlez, the details differ. Sometimes OG Eddy is given, sometimes Zkittlez der Terphogz, sometimes OZ Kush. The strain was bred by Dying Breed Seeds from Mendocino, California, and also circulates as Watermelon Z, Wmz or Watermelon Skittles.

Genetics and Origin:

Dying Breed Seeds is run by Shiloh Massive and the 3rd Gen Family. The original line was released as regular seed and is classed as predominantly sativa. For the other parent, several strain descriptions, the seed producer Pyramid Seeds and a producer from Rhode Island name OG Eddy. A US trade outlet, by contrast, wrote in 2023 of Zkittlez der Terphogz, and another producer lists Watermelon Zum Zum x OZ Kush.

Alongside these are seed lines whose breeders simply give Watermelon and Zkittlez, or The Original Z, as parents, such as Barney's Farm and Pure Instinto. The classification is correspondingly inconsistent: sativa-dominant for the original line and the S1 from Purple City Genetics, 50 % indica and 50 % sativa at Pyramid Seeds, 55 % indica at Barney's Farm.

Melonade goes back to Watermelon Z and Lemonnade, and Purple City Genetics crossed its own S1 with a Cookies selection to make Watermelon Cook. At the High Times Cannabis Cup Massachusetts 2021, a product named after the strain took 1st place in the Indica Vape Pens category. The trade outlet mentioned speaks of 7 gold or silver placements in 2019, 2021 and 2022 in which the strain was involved, but does not name the competitions.

Aroma and Flavor:

Watermelon leads the descriptions, mostly as candy sweetness, accompanied by tropical fruit, berries and citrus. Barney's Farm adds grapes for its version, Pure Instinto earthy herbs with a distinctly sour overtone, and Purple City Genetics floral notes. In a grow report on the Barney's Farm version, the watermelon only emerged after curing and stayed behind grape, berries and sour grapefruit.

Effects:

User reports describe fast-onset euphoria with an urge to laugh, followed by physical relaxation and sleepiness. There are dissenting voices: one report finds the effect closer to that of a hybrid or sativa, and descriptions of the lines classed as sativa-dominant speak of a stimulating, motivating effect. Dry mouth, dry eyes and headache are named as side effects, and dizziness in individual reports.

THC and CBD Content:

Test values have been published for 2 batches from US production; the testing lab is not named in either case. A producer from Rhode Island reports 22.65 % THC (2024). A flower batch from Massachusetts is listed with 28.84 % total THC, 0.13 % CBD, 0.59 % CBG and 2.50 % terpenes, led by limonene, myrcene and linalool. Such values vary by batch, cultivation and phenotype. Other strain descriptions give 24 % THC and 1 % CBG and list limonene ahead of caryophyllene and myrcene.

Cultivation:

For the S1 of the original line from Purple City Genetics, 8 to 9 weeks of flowering, an outdoor harvest in October and an average yield are stated; the flowers are regarded as dense and heavily resin-covered. A cutting supplier likewise gives 8 to 9 weeks for its cut, medium internode spacing, purple tones and good responses to topping, LST and SCROG at a medium difficulty level.

Versions from Different Breeders:

  • Pyramid Seeds (feminized, Watermelon Zum Zum #3 x OG Eddy): 53 days of flowering under LED, 60 days under HPS, 400 g/m² indoor, 750 to 1,000 g per plant outdoor, 25 to 26 % THC. The breeder points to susceptibility to botrytis at high humidity.
  • Barney's Farm (feminized, Watermelon x Original Z): 63 days of flowering, 500 to 600 g/m², 120 to 140 cm indoor, 150 to 200 cm outdoor, 28 % THC.
  • Barney's Farm Watermelon Zkittlez Auto (Watermelon Z x BF Super Auto #1, 60 % indica): 70 to 75 days from germination to harvest, 90 to 110 cm indoor, 450 to 550 g/m², 26 % THC.
  • Pure Instinto (feminized, Zkittlez x Watermelon): 63 to 65 days of flowering, 500 to 550 g/m², 25 to 28 % THC.
  • Blimburn Seeds (60 % indica): 8 to 10 weeks of flowering, 350 to 500 g/m², 18 to 21 % THC.

Community Experiences:

In a documented hydro grow of the Barney's Farm version, the grower expected the height to roughly double after the start of flowering and let the plants flower for 75 to 80 days instead of the 63 stated by the breeder; 4 plants under 600 watts yielded around 18 ounces of dense flowers coloured purple and light green with little leaf content. Another comment on the same version was brief and disappointed. For the S1 from Purple City Genetics, a grower reports low yields in 5 runs. For the autoflower version, customer comments range from uncomplicated growth and a strong melon smell to seeds that did not germinate.

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
sleepy
energetic
relaxed
Reported side effects
dizzy
Headache
paranoid
Aroma & flavor
Tree fruit Sour Grapefruit

No reviews yet — information from the strain description. Rate the strain to see shares.

Cannabinoids & terpenes

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

THC
22.65–28.84 % Lab value (2 samples)
24 %additional figure
0 %35 %
CBD
0.13 % Lab value (1 sample)
0 %20 %
CBG
0.59 % Lab value (1 sample)
1 %additional figure
0 %10 %
CBN
0 % Lab value (1 sample)
0 %10 %
THCV
0.1 % Lab value (1 sample)
0 %10 %
Terpene profile
  • #1
    LimoneneCitrus
  • #2
    CaryophyllenePepper
  • #3
    MyrceneHerbs

Cultivation

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

Flowering & harvest
Flowering time
8–9 weeks
Yield & height
Stretch after flip
2 ×

Expectation of a single grower for the Barney's Farm version (roughly a doubling of height after the start of flowering), not a breeder figure.

Difficulty, environment & climate
Difficulty
Medium
Indoor
suitable
Outdoor
suitable
Climate
Warm, Mediterranean

According to the strain description, a warm, Mediterranean climate is preferred; not used in the text.

Morphology
Internode spacing
Medium
Bud structure
Dense
Trichome coverage
High
Calyx-to-leaf ratio
High
Coloration
Purple tones in flowers and leaves, mentioned in several descriptions and one grow report

Growth habit described inconsistently: bushy (Weedmaps) versus sativa-like growth with strong stretch (retailer description of the Barney's Farm version, Greenfield Seeds). High calyx-to-leaf ratio from a single grow report on the Barney's Farm version only.

Training
Topping
Recommended
LST
Recommended
ScrOG
Recommended

Statement by a cutting supplier for its cut; a grow report on the Barney's Farm version likewise describes a good response to training.

Genetics & origin

Origin
Cross
Watermelon Zum Zum #3 × OG Eddy
Origin
United States, Mendocino, California
Type
Sativa-dominant
Available as seeds
Regular, Feminized, Autoflowering
Flowering types (all versions)
Photoperiod, Autoflowering, Fast flowering
Original breeder
Dying Breed Seeds
Parents (2)
ZkittlezIndica · THC max. 20 %
WatermelonIndica · THC 20–25 %
Descendants (4)
Watermelon MimosaHybrid · THC max. 26 %
Watermelon GelatoHybrid · THC max. 19 %
Awards
  • Nicht benannte Wettbewerbe: 7 Gold- oder Silberplatzierungen in den Jahren 2019, 2021 und 2022 laut Pressebericht, an denen die Sorte beteiligt war
  • High Times Cannabis Cup Massachusetts 2021Indica Vape Pens · Place 1

Versions by different breeders

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

Dying Breed SeedsWatermelon Zkittlez
Original
PhotoperiodRegular

Watermelon Zum Zum #3 x OG Eddy; classed as predominantly sativa; regular seed only; indoor and outdoor. No details on flowering time, yield or THC.

Barney's FarmWatermelon Zkittlez (Watermelon Z)
Different genetics
PhotoperiodFeminized
Flowering
63 days
Yield indoor
500–600 g/m²
Yield outdoor
1,000 g/plant
Height indoor
120–140 cm
Height outdoor
150–200 cm
THC
28 %

Breeder gives Watermelon x Original Z as parents; 55 % indica, 45 % sativa; outdoor harvest in the 3rd to 4th week of September. Whether the line actually differs from the original line is not documented; the stated pedigree differs.

Barney's FarmWatermelon Zkittlez Auto
Different genetics
AutofloweringFeminizedAutoflowering
Yield indoor
450–550 g/m²
Yield outdoor
180–250 g/plant
Height indoor
90–110 cm
Height outdoor
120–140 cm
THC
26 %

Watermelon Z x BF Super Auto #1; 60 % indica, 40 % sativa; total duration according to the breeder 70 to 75 days from germination to harvest (stated in days, therefore not entered in weeks); CBD according to the breeder below 1.1 %; described as undemanding.

More breeders (6): Greenfield Seeds, Plantation Premium Seeds, Pure Instinto, Purple City Genetics, Pyramid Seeds, Blimburn Seeds

Lab results

Measurements of individual samples. Values vary by batch, cultivation and phenotype.

Flowernicht genannt (Testwerte in einem Händler-Listing)
THC28.84 %
THCA31.84 %
CBD0.13 %
CBG0.59 %
CBN0 %
THCV0.1 %
Total terpenes2.5 %
LimoneneMyrceneLinaloolGeraniol 0.02 %Ocimen 0.01 %
Other sample · 2024nicht genannt (Testwert auf der Seite des Produzenten)
THC22.65 %
THCA–
CBD–
CBG–
CBN–
THCV–

Community

14 grow and experience reports reviewed Community reports
Consensus

Fruity-sweet aroma with watermelon, berries and citrus; fast-onset euphoria with an urge to laugh, followed by physical relaxation to sleepiness; dense, resin-rich flowers with purple tones.

Divergent reports

One report finds the effect closer to that of a hybrid or sativa. One grower reports low yields for the S1 from Purple City Genetics in 5 runs, another reports good yields for the Barney's Farm version with an extended flowering time of 75 to 80 days. A brief comment on the Barney's Farm version is disappointed. The watermelon note only emerged weakly after curing in one grow report. Mixed germination rates for the autoflower version.

Reported values from individual grows
Flowering time in a grow report (Barney's Farm version, breeder's figure 63 days)
75–80 days
Yield of 4 plants under 600 watts in a grow report (Barney's Farm version, hydroponics)
18 ounces
Number of runs with low yield in a grower comment (S1 from Purple City Genetics)
5 runs

Similar strains

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

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