Forbidden Runtz Auto Seeds

Experience the taste of original sin with Forbidden Runtz!

forbidden runtz auto seeds

The Runtz family is a cannabis culture phenomenon taking over the global market with a dominance we’ve never seen. Colorful nugs, massive flavor profiles, and high THC content are staples in the lineage.

In this guide, we’ll cover the latest iteration of the family, Forbidden Runtz Auto seeds. While the Runtz name can be tough to live up to, the autoflowering cultivar’s exquisite properties and low maintenance exceed even the loftiest expectations. So keep reading, and we’ll break down everything you need to know about the Runtz variety, including cultivation tips, yield projections, flowering times, and comprehensive strain analysis.

Forbidden Runtz Auto Seeds – Strain ID:

forbidden runtz auto bud

Type: Indica-Dominant Hybrid
Cannabinoids: 26% THC
Terpenes: Caryophyllene, Limonene, Linalool
Effects: Laughter, Happiness, Relaxation
Landrace Strain: Forbidden Fruit x Runtz

Grow Difficulty: Easy
Harvest: 9-10 Weeks
Yield: 550g/㎡
Height: Up to 130 cm
(*Indoor / *Outdoor)

The Best Forbidden Runtz Auto Feminized Seeds in 2023:

Forbidden Runtz Auto Seeds Herbies

• 25% THC
• Harvest: 9-10 Weeks
• Yield: 550g/㎡

• Shipping Worldwide
• Germination Guarantee
• Free Seeds with Every Order

• 1 Seeds – $14.89
• 5 Seeds – $41.23
• 10 Seeds – $63

About Forbidden Runtz Auto Seeds

Strain Origins

Forbidden Runtz Auto is the autoflower variety of the popular cross between Forbidden Fruit and Runtz by Fast Buds. The strain is a genetic improvement on a combination of two of the industry’s most recognized cultivars. As a result, Forbidden Runtz Auto seeds allow you to experience a fruit-forward, high-terpene producer high in cannabinoid content with minimal cultivation expertise.

The Indica-dominant autoflower strain is rapidly growing in popularity among growers, and for a good reason. You’ll experience little resistance as it naturally acclimates to environmental factors and requires little know-how to produce dense, resin-soaked nugs. Adhere to basic cultivation practices, and you’ll be rewarded with cannabinoid-rich flower.

Growing Forbidden Runtz Auto Seeds

Growing Forbidden Runtz Auto seeds is an incredibly easy process. Even if you are new to growing cannabis, you can achieve a premium quality harvest. However, there are some minor factors you need to consider to maximize cannabinoid and terpene production.

Grow Difficulty

Forbidden Runtz Auto is the perfect beginner strain. The process is about as simple as it gets. Thanks to the strain’s robust genetic profile, your plants will tolerate slight fluctuations in temperature and humidity and don’t require any advanced defoliation or training techniques. Give her food, water, and a nice environment, and she’ll flourish!

However, you’ll want to create as stable an environment as possible to hit maximum THC content. She’s very forgiving but won’t pump out the highest quality nugs if basic needs aren’t met.

Optimal Growing Conditions and Climate

Providing your Forbidden Runtz seeds with an optimized growing environment is necessary if you want to experience the flavor and potency of this exquisite strain. While the cultivar is exceptionally resilient, we highly recommend keeping your environment as stable as possible with the following recommendations. In addition, if you keep your temperature, humidity, and lighting consistent with proven specifications, you will avoid dealing with threats to your crop.


Autoflower strains don’t require an adjustment in lighting to switch from the vegetative to the flowering stage, hence the name autoflowering. Many cannabis cultivation experts utilize this feature to the max, opting for minimal dark periods or a 24-hour light cycle. Instead of an 18-hour to 6-hour light-to-dark ratio, they will give their plants maximum exposure with a 20/4 or 24/0 routine.

While this method is controversial among the cannabis community and could be considered wasteful, it’s tough to argue with the results. If you are an experienced grower but new to autoflower varieties, Forbidden Runtz Auto is the perfect strain to try out an untraditional lighting schedule.


Forbidden Runtz Auto seeds like a consistent, warm environment throughout development. We recommend keeping your indoor grow temperature between 25°C and 28°C (78°F-80°F). If you want to try and bring out some colors by dropping the temperature at night, don’t go below 20°C (68°F).


Your relative humidity should also be pretty consistent throughout your Forbidden Runtz Auto cannabis plant’s lifecycle. A 50-60% RH will give your plants enough moisture to develop without producing mold or mildew. While many growers drop their humidity during late flower, it isn’t necessary with Forbidden Runtz.

Flowering Time

Most Forbidden Runtz Auto plants are ready to harvest in around 9-10 weeks. Once your plants approach the end of their lifecycle, you should see fan leaves yellowing, pistils turning dark orange, and your trichomes transitioning to milky white.

We recommend waiting until most of your trichomes have turned cloudy to harvest. This will ensure the indica traits are represented in the cultivar’s effects; however, if you want a more uplifting high, harvest when they are about 50/50 clear to milky white.


Forbidden Runtz Auto marijuana isn’t the most bountiful strain, but the flower quality makes up for the moderate yields. You can expect around 500 grams per square meter when grown indoors. Outdoor plants will produce 50-150 grams per plant.


The strain has an above-average height when given room to stretch out. Most plants fall between 90 and 130cm. If growing in limited space, we recommend LST or topping to help manipulate your plant’s energy resources, height, and shape. Basic training techniques will improve airflow and centralize flower production, resulting in higher yields and manageable plant growth.

Resistance to Pests and Diseases

One of the most significant advantages of choosing a genetically modified strain like Forbidden Runtz Autoflower is its natural resilience to external threats. While you should still monitor for insects, mold, mildew, and disease, you most likely won’t encounter these problems if you keep a clean, stable grow environment.

If you detect signs of a threat, take care of the problem immediately before the condition worsens. A proactive approach is the most effective plan, even when growing highly adaptive phenotypes like Forbidden Runtz Auto.

Forbidden Runtz Strain Description and Properties

Forbidden Runtz Auto Physical Characteristics

The Runtz family is recognized across the global cannabis community for its stunning physical traits. Any strain in the lineage reward growers with colorful buds, tasty smoke, and potent effects, making it one of the most marketable cultivars in the industry.


Even at a glance, the strain’s colorful, sugary visual presentation is guaranteed to catch your eye. Forbidden Runtz Auto buds are tight and dense, with a bright green appearance highlighted with bursts of purple and pink. Expect medium to large nugs covered in a thick layer of glistening trichomes giving a frosty and sparkling exterior.


The flavor of Forbidden Runtz is even more tantalizing than its appearance. A sweet and fruity taste dominates the inhale, with a touch of sourness on the way out. You’ll notice prevalent notes of vibrant fruits like pineapples, mangos, watermelon, and wild berries. The smoke is smooth and easy to manage leaving behind a distinct, creamy candy-like taste.


Fruity gas best describes the aroma of Forbidden Runtz Auto. Its nugs have an incredibly refreshing and complex smell distinct from other members of the Runtz family tree. The first scent that hits the nose consists of fruity and tropical flavors. Then, your aroma journey is balanced by a pungent, diesel undertone giving the strain one of the most iconic profiles in the industry.

Cannabinoid Content

With THC levels consistently hitting levels up to 26%, there’s no mystery why it is called Forbidden. While CBD levels are low at just around 1%, your potential for significant total cannabinoid content is high due to the strain’s productive resin glands. Look for expectational levels of CBC and other minor cannabinoids, adding value and marketability to your crop.

Dominant Terpenes in Forbidden Runtz Cannabis

The driving force behind Forbidden Runtz Auto’s exceptional physical traits is its high terpene content. So you may have found your perfect match if you are looking for a strain to make live resin, rosin, or other high-terpene extracts.

Forbidden Runtz Autoflower is dominated by terpenes caryophyllene, limonene, and linalool. Each brings unique flavors, smells, and benefits to the cultivar. The combination of limonene and linalool is rare, giving the strain its iconic fruit-forward properties with subtle hints of gas.

Forbidden Runtz Auto Strain Effects

The Runtz family autoflower variety possesses 65% Indica traits; however, the effects are almost perfectly balanced. First, you’ll enjoy a burst of energy encouraging conversing and laughing with friends. As the high moves forward, your mood mellows out, and the effects transition from cerebral to a grounded body high. While you’ll be overcome with a welcoming sense of relaxation, you won’t be restricted to the confines of your sofa or accidentally drift into an unexpected weed nap.

We recommend Forbidden Runtz to be used as a daytime strain so you can take advantage of its euphoric and talkative properties. The variety pairs well with activities like meeting for coffee or exploring the outdoors with friends. After the initial burst of energy, the high transitions nicely into peak relaxation, allowing you to socialize and enjoy your time winding down.

Forbidden Runtz Auto’s Medical Potential

High THC flower makes an excellent candidate to deliver the medicinal effects of marijuana. Forbidden Runtz Auto provides users seeking natural relief an alternative to mood-enhancing prescription drugs, appetite stimulators, and pain relievers. Potent cannabis strains are also commonly used for chemotherapy side effects such as nausea and vomiting. In addition, experts recommend trying high-THC varieties to combat muscle spasms and mobility challenges due to MS.

While Forbidden Runtz Auto is an ideal medical strain, we always recommend using medical cannabis in moderation and with the guidance of a professional.

Adverse Effects of Forbidden Runtz Auto Weed

Consuming potent strains like Forbidden Runtz Auto in excess can lead to unwanted side effects. We suggest starting with a small amount to ensure you can comfortably handle the powerful properties of the strain before overindulging. While the high is manageable, adverse effects such as paranoia, disorientation, and memory loss are possible in high doses.

Pros/Cons of Growing Forbidden Runtz Seeds


  • Perfectly balanced effects
  • High THC content
  • Premium bag appeal
  • Easy to grow
  • Massive terpene production
  • Bright colors


  • Moderate yields especially outdoors
Watch: Forbidden Runtz Auto Grow

The Best Forbidden Runtz Auto Feminized Seeds in 2023:

Forbidden Runtz Auto Seeds Herbies

• 25% THC
• Harvest: 9-10 Weeks
• Yield: 550g/㎡

• Shipping Worldwide
• Germination Guarantee
• Free Seeds with Every Order

• 1 Seeds – $14.89
• 5 Seeds – $41.23
• 10 Seeds – $63

Main Category Page:
Cannabis Seed Index – A curated index of the world’s best cannabis seed strains. Each review contains vital information, such as cultivation tips, strain profiles, and where to buy the best cannabis seeds.
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