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Runtz Auto

Runtz x Super Auto #1

Runtz Auto produces a sweet, candy-like aroma with tropical fruit undertones that make it one of the more distinct-smelling autoflowers on the market. Bred from the original Runtz genetics, this Indica dominant hybrid delivers the same flavorful profile as its photoperiod parent in a compact, 65 to 70 day grow window.

THC

•

Autoflower

•

Indica

Price range: $34.99 through $109.99

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Cultivation Notes:

Runtz Auto finishes in 65 to 70 days from seed, reaching 31 to 39 inches indoors and 43 to 55 inches outdoors. Indoor yields can reach 1.6 to 1.9 oz/sq ft under dialed-in conditions, while outdoor plants commonly produce 8 to 11 oz per plant. The plant develops resin-coated buds with a dense, Indica-leaning structure and benefits from good airflow as the canopy fills in. Like all autoflowers, it moves through its cycle without a light schedule change, making it well suited for perpetual indoor setups or outdoor grows with tight timing windows.

Additional Info:

Growers commonly associate Runtz Auto with an uplifting, calming experience that reflects its balanced 70/30 Indica-Sativa split. The flavor carries sweet tropical and candy notes that hold up well through cure and tend to be expressive from first open. At 27% T#C it sits at the top end for autoflowers, and the resin output reflects that. Despite the potency, it is an approachable grow that adapts well to both indoor and outdoor environments, making it a strong option for anyone who wants a high-output, flavorful autoflower without a long wait.

 

This seed was developed by a trusted member of the Triangle Seeds Breeder Network, ensuring top-tier quality and genetic integrity.

Frequently Asked Questions

Is Runtz Auto a Sativa, Indica, or Hybrid?

Indica

Is Runtz Auto an Autoflower or Photoperiod strain?

Runtz Auto is an Autoflower. Autoflower varieties flower automatically based on age, usually finishing 9 to 12 weeks from seed regardless of light schedule. No light timing required — they're ideal for new growers, fast turnarounds, and growing indoors year-round. Photoperiod varieties flower when the light schedule changes (typically 12 hours on / 12 hours off). They take longer but give you more control over plant size and yield.

How long does it take Runtz Auto to grow?

Autoflowers are the fastest path from seed to harvest. Most finish in 8 to 12 weeks total from germination, regardless of light schedule. Because they flower based on age rather than light changes, there's no separate vegetative phase to manage. Just plant, provide consistent light (18 to 20 hours a day works well), and let the plant do its thing. Check the strain details above for specific timing estimates, and visit our growing guide for tips on getting the most out of your grow.

What does Runtz Auto smell like?

Sweet, Fruits, Candy

What does Runtz Auto produce — THC, CBD, or CBG?

THC

What do other growers report Runtz Auto feeling like when consumed?

Calming, Relaxing, Euphoric

How do I germinate Runtz Auto seeds?

Autoflowers need a slightly different approach because their roots are sensitive to transplanting. Start with a 24-hour soak in water to boost germination. After soaking, plant the seed directly into its final container (3 to 5 gallon pot) about half an inch deep — do not use the paper towel method or start in a small pot. Spray the area around the seed to keep the soil moist, but do not soak the entire container. The key with autoflowers is to never transplant them. For a full walkthrough, check out our germination guide.

Disclaimer: All seeds contain less than 0.3 percent delta-9 THC. Educational content is intended for adults in regions where cultivation is legal. Buyers are responsible for complying with local laws.

Customer Reviews

★★★★★
Richard B ✓ Verified Buyer
October 12, 2026
In this era of 10-option voicemail messages, AI and frequently mediocre customer service, Matt and Chase stand out for the personal, responsive nature in supporting all people who choose to grow their own. Note that I only purchased a few seeds to grow a single plant. It was a Runtz autoflower--and I grew it in my backyard in Baltimore in a large flower pot. It was fun to watch it sprout and grow--and the end result has been very satisfying. Note also that I wanted a short plant so it would not draw much attention--growing a plant or two is legal in Maryland but I was concerned that someone might pull the plant when it neared maturity. However, I live in a very low-crime and friendly neighborhood and the plant grew to full maturity. Kudos to Matt, Chase and Triangle Seeds. They are a welcome rarity in our increasingly depersonalize AI-drive world.
Plant photo by Richard B
★★★★★
Allen R ✓ Verified Buyer
October 1, 2026
First autoflower grow. I wanted to experiment with growing an sutoflower outdoors. I always do outdoor grows but it's always tricky around harvest time when you have to decide to harvest early to avoid mold or wait until they are finished and hope the mold doesn't get too much of the plant. These worked out perfectly. I started them indoors in their final three gallon pots. I moved them out outdoors after four nodes. My feeding was very simple. I used Osmocote slow release fertilizer which I incorporated into the Promix hp when I initially filled the pots. Kept them watered after that anddthat was it. Very easy. Both plants grew great with no disease or pest issues. I was genuinely shocked at how quickly they finished. I didn't keep track of total grow length in days. If I recall correctly they were finished at the end of July or early August. This grow made a convert for autoflowers. To grow this quickly, this easily and to get a harvest in long before I'd have to worry about mold, made me very happy. Got about 7 ozs. total for yield. I was almost very surprised after my first sample. I was 🔥. Very nice experience all the way around. Congrats. to Triangle. I'll be growing many more autos outdoors next yield. That early harvest was great! Will also have to pick up some more autos for an upcoming indoor grow.
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