



Black Runtz Seeds
The potent Black Runtz strain is a hybrid that offers users a happy and uplifting experience with total physical relaxation. If you are looking for a boost in mental creativity and a cultivar that provides great flavour, Black Runtz is a solid choice.
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Black Runtz: Fiercely Dark Buds
Black Runtz is world-renowned for its sweet, slightly floral flavour, creamy berry notes, and devilishly dark buds that are typically covered in thick resin. The strain was originally bred by combining Gelato and Zkittlez, two uber-popular Indica strains. Black Runtz is a Strain of the Year winner and shows no signs of slowing down any time soon.
This strain's massive THC content of 30% is strong enough to knock even the most devoted cannabis user on their backside. Super euphoric and physically relaxing, Black Runtz is definitely an after-work bud. You may find it hard to focus on a single task after taking a few large hits of Black Runtz, so it's best you enjoy it at home after the day is over.
Growing Tips for Black Runtz Seeds
Black Runtz is a medium-height, hybrid strain that features dark purple, grape-shaped buds. Known for its resilience toward fluctuating temperatures. Like many cannabis strains, it performs best in a closely-controlled environment, but because it can endure minor dips and spikes concerning heat and moisture, it serves as a practical choice for intermediate growers because it requires a bit of a green thumb to see it to fruition. Below, we've provided effective ways to simplify and streamline the growing process.
Establish consistent conditions
Daytime temperatures of approximately 21-29 degrees Celsius are ideal for Black Runtz plants. Humidity levels should fall between 40-50% during the vegetative stage, and drop to 40% during the flowering phase. A reduction in moisture helps eliminate the risk of mould while encouraging a more potent terpene profile.
Recommended Training Techniques
Low-stress Training, Topping, and Screen of Green (ScrOG) training techniques are best suited for this particular strain. These techniques require the grower to trim the non-producing parts of the plant while reinforcing the heavier branches and buds with screens or nets so the weight of the buds doesn't compromise the integrity of the entire plant.
Fine-tune nutrient levels
All cannabis plants benefit from nitrogen, phosphorus, and potassium (NPK). During vegetative growth, Black Runtz prefers greater amounts of nitrogen, as it promotes leaf and stem production. However, because nitrogen encourages leaf growth, it's important to reduce levels during the flowering stage. This will allow your plants to channel their efforts towards resin-rich bud development instead. To lower nitrogen levels, try using a bloom formula or simply dilute your existing feed.
Germinating Your Black Runtz Seeds
Our straightforward germination guide is an easy-to-understand way for growers of all skill levels to start the growing process. If you have basic items on hand, such as paper towels and water, you can germinate your Black Runtz seeds like a pro.
Our step-by-step process allows taproots to emerge within 3–7 days, following which your seeds can be transferred to nutrient-rich soil, a hydroponic setup, or another growing medium of your choice. As an added benefit, growers who use our technique can cultivate with confidence, knowing their seeds are fully protected by our germination guarantee.
Yields, Flowering Times, and Harvest
The Black Runtz strain has a flowering period of approximately 55-65 days, with outdoor harvests typically occurring in early October. Indoor growers will produce up to 600 grams of trichome-rich buds under proper care, while outdoor growers may see yields of up to 650 grams per plant, so long as environmental conditions remain stable.
Dominant Terpenes in Black Runtz
Black Runtz's unique scent and flavour are due, in part, to dominant terpenes myrcene, caryophyllene, and limonene. Myrcene contributes a floral scent and taste and a physically relaxing vibe. Caryophyllene is a peppery and spicy terpene that can be found in cinnamon and black pepper. Limonene is often found in the rinds of citrus fruits, and when it is found in cannabis strains, it offers a sweet citrus scent and flavour.
Dominant Cannabinoids in Black Runtz
Black Runtz's THC content of 30% makes it a super-strong offering in the cannabis world. Powerful enough to affect daily smokers, the value you get from Black Runtz is worth every penny. Lauded as a nighttime-only strain, you can also enjoy this herb on the weekends when work is a distant memory. Creative pursuits become clearer as your body melts into your favourite chair or the couch.[/vc_column_text][/vc_column][/vc_row]
Strain Data
| Breeder | Mendocino Farms |
| Pack Size | 3 Seeds, 5 Seeds, 10 Seeds, 25 Seeds |
| Genetics | Gelato x Zkittlez |
| Cannabis Species | Hybrids |
| Blend | 55% Indica / 45% Sativa |
| Flowering Time | 55-65 days |
| THC | 30% |
| THC Level | High (>20%) |
| CBD Level | Low (<2%) |
| Effects | Euphoric, Relaxing |
| Terpene Profile | Caryophyllene, Limonene, Myrcene |
| Yield Indoors (per m²) | Up to 600g/m² |
| Outdoor Yield (per plant) | Up to 650 gr/plant |
| Yield Level | XL Yield |
| To Target | Anxiety, Insomnia, Pain |
| Taste | Berry, Creamy, Floral, Spicy |
| Skill Level | Intermediate |
| Plant Sex | Feminized |
| Flowering Type | Photoperiod |
| Where to Grow/Cultivate | Indoor/Outdoor |
| Size | Medium |
| BIN | BIN4 |





