Black Runtz Strain


Caryophyllene, Limonene, Myrcene

Strain Type





30 in – 78 in

Yield (oz/ft2)

1 – 3

Flowering Time

8 – 9 weeks

Harvest Month


Pack Size

3, 6, 12, 24


Premium Cultivars

Seed Type


Black Runtz SeedsBlack Runtz cannabis seeds produce deep, dark purple buds with green accents and heavy frosting.

The History of Black Runtz Cannabis Seeds

Black Runtz seeds are variants on the legendary Runtz strain, a California mainstay and, at this point, cannabis royalty. This cannabis hybrid is a phenotype of classic Runtz, the 2020 Strain of the Year, and it has the same award-winning Zkittlez and 2018 Strain of the Year Gelato parents.

How to Germinate Black Runtz Cannabis Seeds

Germination is the procedure through which a plant begins to develop from seed. As the first step of the development cycle, germinating a seed necessitates a grower to create the ideal atmosphere for those seeds to split open and pop with new and robust growth. The paper towel technique for seed germination is one of the simplest and most successful ways to get cannabis seeds to sprout. You’re germinating seeds between two moist paper towels and a couple of plates, which are utilized to make an enclosed and dark setting for a few days. If done correctly, the seeds will begin to sprout during this period. Here are step-by-step instructions to effectively germinate your Black Runtz seeds;

  1. Start by assembling your materials, which should include some Black Runtz seeds, water, paper towels, a plate, and tweezers.
  2. Wet the paper towels and wring them thoroughly to eliminate any excess moisture.
  3. Place one paper towel on the platter and set aside the other.
  4. On a paper towel, spread out the Black Runtz seeds. Place the cannabis seeds 1 inch apart.
  5. Wrap the Black Runtz seeds in the second paper towel, then add some water, being cautious not to over-wet them.
  6. Examine the plate for any extra water.
  7. Place the dish somewhere dark, preferably in a cupboard. Keep the dish out of direct sunlight.
  8. Soak the Black Runtz seeds for 20-120 hours, adding water as required.
  9. After the Black Runtz strain seeds sprout, use tweezers to delicately select the viable seeds and transfer them to potting soil for growth.

Why are Feminized Seeds Better than Regs?

Feminized seeds are just as beneficial as regular seeds for producing mother plants. Also, the outputs are consistent even when production is carried out on a big scale. The number of hermaphroditic plants produced by Feminized seeds indicates the quality of the seeds. Regular strains seeds include the complete set of genetics that allow them to be either male or female, whereas Feminized cannabis seeds lack male chromosomes. Also, this is why Feminized seeds must always be referred to as such – they aren’t female and cannot be marketed as such. When purchasing a variety of cannabis, most growers choose female seeds since they yield good-grade flowers without the chance of encountering some male plants. This is required to pollinate female flowers with male pollen, resulting in new genetic crossings and seeds.

Growing Black Runtz Cannabis Seeds

The Black Runtz strain seeds are slightly more challenging to produce than other breeds. This cannabis strain is suitable for individuals with cannabis production experts who are looking for a new challenge.

Should I Grow Black Runtz Cannabis Seeds Indoors or Outdoors?

Black Runtz seeds thrive both indoors and outdoors.

Growing Black Runtz Cannabis Seeds Indoors

The indoor flowering time for Black Runtz is around 8-9 weeks, and the particular yield can vary, although it is believed to be at least above average.

Growing Black Runtz Cannabis Seeds Outdoors

Outdoors, Black Runtz strain seeds are usually ready for harvest in mid-October.

How Much do Black Runtz Cannabis Seeds Yield?

How to Get Better Yields from your Black Runtz Cannabis Seeds

Once your Black Runtz seeds germinate, it takes around nine weeks for them to blossom and provide a large crop. Depending on the growth conditions, your crops can yield 17oz-24oz.

The Best Grow Medium for Black Runtz Cannabis Seeds

Using hydroponics to grow Black Runtz seeds inside will help the plant grow faster. Hydroponic media’s rapid absorption of nutrients will aid the plant’s growth. Furthermore, growers are encouraged to develop Black Runtz on soil since it yields well.

The Best Climate for Black Runtz Cannabis Seeds

A grow tent is ideal for growing Black Runtz strain inside since it requires a specific temperature and environment to thrive. It is easy to monitor and modify these levels inside the tent. To succeed with Black Runtz outdoors, you’re better suited to settling in a somewhat tropical area. This crop’s optimal weather should start warm and humid but right before the blossoming stage. The quality and quantity of the buds can be enhanced by correctly exposing these plants to a colder but still humid environment.

Problems to Look Out For When Growing Black Runtz Cannabis Seeds

Black Runtz seeds are more difficult to grow than other cultivars. The plants require a lot of magnesium and calcium. Regularly prune the bushes to increase ventilation and allow the plants to develop to their maximum potential.

How Difficult is it to Grow Black Runtz Cannabis Seeds?

Are Black Runtz Cannabis Seeds Suitable for Beginners?

Black Runtz seeds aren’t the simplest strain to cultivate, but they can be done effectively inside or outdoors with the correct procedures and careful monitoring of the maturity phase. Therefore, novice producers are required to have a bit of knowledge and skills to acquire adequate yields.

The Best Grow Techniques for Black Runtz Cannabis Seeds

Screen of Green

Growing cannabis with the SCROG technique yields uniform buds. The cannabis branches are trained to hover above the screen inside the canopy during the screen of green process. The approach permits all branches to be the same distance from the illumination. Each flower will be able to receive as much light as it requires. Your crop will always be uniform if you employ the screen of green approach. You can count on it. An untrained cannabis plant’s primary cola might grow higher than the rest of its branches. Each lateral branch below the main cola receives less light as it descends in this configuration. Your lights should be equidistant from each cluster of flower buds in a SCROG setup. The spacing of branches promotes appropriate airflow above and below your plant’s canopy. If necessary, producers can use a fan to boost airflow.


It is feasible to control the growth of the cannabis plant. Pruning is one of the most successful strategies to regulate the development of your plants. Pruning checks all the boxes if you want to boost production, postpone blooming, stimulate lateral branching, and restrict the size of your plant. Pruning is the process of cutting tiny, targeted parts of a plant. It is done to promote healthy plant development. Pruning removes growth that is unproductive, injured, or prevents sunlight from reaching the growing flowers. By removing this growth, the plant may direct its energy into strengthening and nourishing the surviving buds, shoots, and leaves. Pruning the plant successfully enhances light exposure and increased ventilation. This also promotes a more lively plant with denser buds.

Additionally, pruning cannabis is generally done during the vegetative development stage. This is before the plant matures and is ready to blossom. You should have a well-established plant that is in bloom. Before you prune it, it should have many sets of leaves and be around 12 inches tall. If you want to develop squat, bushy plants, you can keep trimming to a minimum.

Sea of Green

SOG, or Sea of Green, is an excellent method of producing cannabis that allows the plants to enter the flowering period quickly, especially when they are young and tiny. By starting the blooming stage of cannabis crops after around two weeks of vegetative development, you may yield many weeks earlier than you would if you developed your crops to adult size. The Sea of Green approach is beneficial if you have many cuttings from cloned cannabis. This process enables you to save money on seeds while ensuring the excellence and sex of your young plants.

Although Sea of Green does not require pruning in general, some gardeners like to seal up the branches beneath the canopy once the canopy has been established to direct the plant’s energy into the central bud and improve airflow below the umbrella or canopy. These cuttings may be cloned and frequently provide the next generation of SOG plants, resulting in a self-sustaining harvest.

Are there Similar Seeds to Black Runtz Cannabis Seeds for Sale Online?

Comparable cannabis strains to Black Runtz are Cashmere, Alien Cookies, Purple Panty Dropper, and Peach Cobbler.

Where can I Black Runtz Cannabis Seeds?

Buyers interested in Black Runtz seeds can find them on the Premium Cultivars website and order them there.

How do I Black Runtz Cannabis Seeds?

Premium Cultivars, a reputable cannabis seed bank, offers a variety of high-yield cannabis seeds to customers in the United States. Black Runtz seeds come in packs of 6, 12, or 24. Premium Cultivars sells Black Runtz seeds in all states where cannabis seed sales are legal. Orders of Black Runtz strain seed that exceed $100 qualify for free shipping. All potential consumers are advised to visit the website, explore the seeds, make online purchases, and pay using credit cards, which are the only payment options accessible.

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