Watermelon Zkittles Feminized Seeds

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Watermelon Zkittles is a feminized hybrid, 55% indica and 45% sativa, with tropical fruit, sweet and berry aromas. Leafly users most often report feeling relaxed, happy and sleepy.

  • THC~28%
  • Flowering9–10 wks
  • GrowEasy
  • TypeFeminized photoperiod
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Strain Specifications

🔬 THC Very High THC (~28%)
💊 CBD Low CBD (< 5%)
🧬 Genetics Watermelon x The Original Z (Zkittlez)
🌱 Seed Type Feminized Photoperiod
🌿 Strain Type Hybrid
⚖️ Indica/Sativa 55% Indica / 45% Sativa
⏱️ Flowering Time 9-10 weeks
📊 Difficulty Easy
🏠 Yield Indoor 500-600 g/m² (1.6-2.0 oz/ft²)
☀️ Yield Outdoor Up to 1000 g per plant (35.3 oz)
📏 Plant Height 120-200 cm (3.9-6.6 ft)
🎯 Best For Indoor, Outdoor, Greenhouse
🌡️ Climate Temperate, Mediterranean
👃 Aroma Tropical fruit, sweet, berry
👅 Flavour Fruity, watermelon, grape
😌 Effects (reported) Relaxed, happy, sleepy, euphoric, giggly

Specs and grow figures are a guide — results vary with phenotype, setup and grower. Checked October 2026.

Watermelon Zkittles is a feminized hybrid, 55% indica and 45% sativa, that crosses Watermelon with The Original Z, with tropical fruit, sweet and berry aromas and a fruity watermelon and grape taste. Barney’s Farm, which sells it as Watermelon Z, lists THC at 28%, and Leafly’s strain data puts it at about 24%. It flowers in about 9 to 10 weeks.

History & lineage

Watermelon Zkittles is Barney’s Farm’s cross of Watermelon and The Original Z, the strain first known as Zkittlez; Barney’s now sells it under the name Watermelon Z, and Leafly lists it the same way.

The Original Z is said to be a mix of Grape Ape and Grapefruit crossed with another undisclosed strain, and it came to market in the 2010s. Leafly credits the growers working as Terp Hogz, with 3rd Gen Family’s Brandon Parker, for popularizing it, and a 2016 Ganjapreneur report named 3rd Gen Family and Terp Hogz as its breeders.

Aroma & flavour

Expect sweet tropical fruit and berry on the nose and a fruity, watermelon and grape taste, the profile Barney’s Farm gives. Leafly users most often report sweet and tropical flavours, followed by berry, citrus and flowery, and Leafly’s lab data lists limonene as the most abundant terpene, followed by caryophyllene and myrcene. Our guide to cannabis terpenes explains what those compounds add to a smell.

Effects, as users report them

Most reportedRelaxed · Happy · Sleepy · Euphoric · Giggly
Downsides reportedDry mouth · Dry eyes · Headache · Dizzy · Paranoid

These are Leafly users’ reports for Watermelon Z, as Leafly lists this strain, most common first, from a fairly small number of reviews. Leafly describes its effects as mostly calming, with a high that may set in quickly, and Barney’s Farm describes them as uplifting, euphoric and calming. Dry mouth is the downside mentioned most, then dry eyes and headaches; a few users report dizziness or paranoia. Effects vary with the person and the dose, so if you are new to cannabis, start with a small amount.

Growing Watermelon Zkittles

Watermelon Zkittles is a feminized photoperiod plant: it keeps growing leaves until the light drops to 12 hours a day indoors, or until the days shorten outdoors. Barney’s Farm gives 63 days of flowering on its data sheet and 63 to 70 days in its grow notes, about 9 to 10 weeks, with an outdoor harvest in the third to fourth week of September in the Northern Hemisphere.

It is rated an easy grow. Barney’s Farm gives a height of 120 to 140 cm (about 3.9 to 4.6 ft) indoors and 150 to 200 cm (about 4.9 to 6.6 ft) outdoors, around 500–600 g/m² (about 1.6–2.0 oz/ft²) indoors and up to 1,000 g (about 35 oz) per plant outdoors. It describes towering colas packed with buds that hang from every branch, so plan on support for heavy branches, keep air moving through the canopy in late flower, and judge when to harvest by the trichomes rather than the calendar. The fruity smell builds through flowering; our guide to controlling grow smell covers the options.

Flowering9–10 weeks indoors
Outdoor harvestLate SeptemberNorthern Hemisphere
DifficultyEasy
GrowsIndoor, outdoor, greenhouse
Indoor yield500–600 g/m²1.6–2.0 oz/ft²
Outdoor yieldUp to 1000 g per plant35.3 oz
Height120–200 cm3.9–6.6 ft
ClimateTemperate, Mediterranean

Is Watermelon Zkittles right for you?

A good fit if
  • you want a hybrid with a sweet, tropical fruit and berry character
  • you want a strain whose Leafly reviewers most often report relaxed, happy and sleepy effects
  • you want an easy-rated plant that can finish outdoors by late September
Maybe not if
  • you want a daytime, energetic strain — Leafly users most often report relaxed, happy and sleepy, and Leafly calls its effects mostly calming
  • you are new to cannabis and want something mild — Barney’s Farm lists THC at 28%
  • you are short on height outdoors — plants can reach 150 to 200 cm (4.9 to 6.6 ft); an autoflower stays smaller

Questions buyers ask

Is Watermelon Zkittles the same as Watermelon Z?

Yes. Barney’s Farm, the breeder, now sells this cross of Watermelon and The Original Z as Watermelon Z, and Leafly lists it under that name.

What are Watermelon Zkittles’ genetics?

Watermelon crossed with The Original Z, the strain first known as Zkittlez, at 55% indica and 45% sativa. The Original Z is said to be a mix of Grape Ape and Grapefruit crossed with another undisclosed strain.

How long does Watermelon Zkittles take to flower?

About 9 to 10 weeks indoors once you switch to 12 hours of light (Barney’s Farm gives 63 to 70 days), with an outdoor harvest in the third to fourth week of September in the Northern Hemisphere.

Are these Watermelon Zkittles seeds feminized?

Yes. They are feminized photoperiod seeds, bred to grow female plants, the ones that make buds. Our germination guide covers the first step.

Sources
  • Barney’s Farm — the Watermelon × Original Z cross, 55/45 balance, THC, flowering time, harvest month, height, yields, aroma, flavour, effects
  • Leafly — THC strain data, effects description, user-reported effects and flavours, lab terpenes; its The Original Z page for that strain’s story
  • Ganjapreneur — 3rd Gen Family and Terp Hogz as The Original Z’s breeders
  • Zamnesia — the breeder-specified easy difficulty rating

Read Reviews from our Customers

Strong Genetics

29 August 2024

My plants turned out better than expected!

For an indoor grow it was amazing!

Carl