Runtz x Layercake Grow Report

Barney’s Farm, renowned for its expertise in Californian West Coast genetics, has consistently introduced exceptional strains to the cannabis community. Their latest masterpiece, Runtz Layer Cake, is a testament to their prowess.

This strain boasts a genetic composition that combines the illustrious names from the Californian dessert strain lineage. Runtz, a blend of Zkittlez and Gelato, is masterfully integrated with the four-way cross Layer Cake, which is a mix of Wedding Cake, GMO Cookies, Cookies Kush, and Skunk #1.

The outcome, as described by Barney’s, is a breathtaking evenly balanced super-hybrid. It offers a hefty potency of up to 27% THC, impressive productivity with yields reaching up to 650g/m2 indoors, a moderate flowering time of 65-70 days, and a rich aroma that mirrors the best aspects of its parent strains.

Users can anticipate zesty notes of citrus, gas, and earthiness, complemented by a generous dash of sweetness. The powerful buzz it delivers is a harmonious blend of sativa’s mental stimulation and indica’s physical relaxation.

Growth and Cultivation

Runtz Layer Cake is a grower’s delight. Its robust and forgiving nature makes it an ideal choice for both seasoned cultivators and novices. Indoors, the plants can reach heights of up to 120 cm.

For outdoor enthusiasts, this strain is a viable option, as it matures early, typically in the first or second week of October.

Under optimal conditions, growers can expect staggering yields of up to 2.5 kilos per plant, with plants stretching to about two meters in height.

Mr. Knolle’s Experience

When Mr. Knolle was planning his next cultivation cycle, he had space for one more plant. Fortuitously, a friend offered him a feminized Runtz Layer Cake seed, which he eagerly accepted. The seedling sprouted in less than three days and exhibited vigorous growth.

After three weeks of vegetative growth, the plant had developed a sturdy structure and stood at 28 cm. As it transitioned to the flowering stage, the plant showcased its potential by doubling its height in just three weeks. The buds that formed were plump and aromatic, and to Mr. Knolle’s surprise, displayed a beautiful dark red to violet hue.

Nine weeks into flowering, he was astounded by the plant’s resin production and the contrasting colors that made the trichomes shine even brighter.

When harvest time arrived after 65 days, Mr. Knolle was pleased with the easy-to-manicure buds and was eager to weigh his yield. His anticipation was rewarded with a whopping 108 grams of dried buds.

Taste and Effects

Mr. Knolle’s first sampling session with Runtz Layer Cake was an experience to remember. The initial flavor was intensely sweet, reminiscent of vaporized sugar.

As he savored the taste, layers of gassy, clove, black pepper, and lemon notes unfolded on his palate, all wrapped in a lingering licorice aftertaste. The effects were immediate and potent.

A warm sensation enveloped his body, leading to deep relaxation, while his mind was uplifted and worries melted away. The strain’s effects lasted for over two hours, offering both physical and mental comfort.


In Mr. Knolle’s words, “Runtz Layer Cake is the best strain I’ve ever grown.” He lauds it for its potency, flavor, and growth characteristics. Grateful for this gem from Barney’s Farm, he gives it a five-star rating across all categories.

GeneticsRuntz Layer Cake (Runtz x ([Wedding Cake x GMO Cookies] x [Cookies Kush x Skunk #1]))
Vegetative stage21 days (after germination)
Flowering stage65 days / 65-70 days in general
MediumBionova Bio Soilmix-Erde, 11 litre pots
EC1.2–1.6 mS
Light3x SANlight Q1 and 1x Q3
Air humidity40-60%
Wateringby hand
FertilisationBionova Soil Supermix, plus PK 13-14 in the flowering stage
Additives/stimulantsBionova Silution, The Missing Link, Vitasol and X-cel
ToolsCleanLight Pro for mould prevention
Height70 cm

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