Seeds
Forbidden Runtz Auto Feminised Seeds
SKU: FB-FORBRUNTZ-AUTO-FEM
Dense buds with a sweet, fruity taste and very high levels of THC.
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Flowering Type
Autoflowering
Parental lines
Forbidden Runtz Auto
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Autoflowering seed to harvest time
Information not available
Yield indoor
Information not available
Plant size
Information not available
Suitable climates
Cool, Dry, High altitude, Hot, Temperate, Warm
From the breeder
Dense buds with a sweet, fruity taste and very high levels of THC.
Fast Buds breeder notesParental lines
Forbidden Runtz Auto
Dense buds with a sweet, fruity taste and very high levels of THC.
Forbidden Runtz Auto Feminised is the auto-flowering version of the recent cannabis success story Runtz. With 65% indica genetics Forbidden Runtz Auto produces bumper yields of deliciously-tasting, high-THC buds in a short grow-cycle. This is a strain that is easy to grow, even for beginners.
Forbidden Runtz Auto can be grown indoors and outdoors. Grown indoors, plants grow to about 100 cm. tall or slightly less. The side-branches are thick and strong and the density of the buds means that LST or SCRoG will not only produce bigger yields by allowing more light into the plants interior bud sites, but also help with air circulation reducing the risk of mould.
Indoor yields can be as high as 450 - 550 gr/m2 in 65 days from germination. Outdoors plants will grow a bit taller when planted in the ground or in bigger pots, reaching up to 130 cm. tall. In this environment each plant is capable of producing between 50 - 150 gr. Flushing is recommended in the final week of flowering to improve the flavour during curing.
A very fruity-tasting strain, Forbidden Runtz Auto can produce 26% THC with less than 1% CBD. Its effect is balanced but tending more towards a physical high yet with some sativa uplift.
Brand/breeder
Fast Buds
Parental lines
Forbidden Runtz Auto
Variety
Indica dominant
Flowering type
Autoflowering
Sex
Feminised
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Suitable climates
Cool, Dry, High altitude, Hot, Temperate, Warm
SKU
FB-FORBRUNTZ-AUTO-FEM
Autoflowering outdoor timeline
Autos can be sown in multiple waves through the season for staggered harvests.
Stage 1
Germination
April – July
Wait for: warmer days, no frost, stable temperatures
Watch for: cold nights, overwatering, weak early light
Stage 2
Seedling / Transplant
1–2 weeks after sprouting
Wait for: strong light, mild weather, protected start
Watch for: slug damage, stretching, transplant stress
Stage 3
Vegetative Growth
Weeks 2–5
Wait for: long bright days, healthy root growth
Watch for: stunting, nutrient burn, pest pressure
Stage 4
Flowering
Weeks 5–8+ depending on cultivar
Wait for: steady sunshine, decent airflow, dry spells
Watch for: mould, heavy rain, snapped branches
Stage 5
Harvest
Weeks 8+ or summer to early autumn
Wait for: mature trichomes, swollen buds, finished aroma
Watch for: bad weather, bud rot, harvesting too early
Indoor autoflowering timeline
Autoflowers follow their own internal clock, making indoor timelines easier to plan from seed to harvest.
Week 0
Germination
Healthy seedling emergence
Wait for: healthy seedling emergence
Watch for: overwatering, weak starts
Week 1–2
Seedling
Steady early growth
Wait for: steady early growth
Watch for: stretching, stress, excess moisture
Week 2–5
Early Growth
Strong leaf and root development
Wait for: strong leaf and root development
Watch for: stunting, overcrowding, early stress
Week 5–9+
Flowering
Bud development and visible maturity
Wait for: bud development and visible maturity
Watch for: humidity issues, poor airflow, plant stress
Week 8–12+
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: harvesting too early
Based on 32 reviews
Forbidden Runtz Auto Feminised Seeds
This is my first time growing, and so far so good, the runtz survived my amateur training skills, and eagerness to learn more.. while crossing over the middle of flower, these girls are looking very promising, I can hardly wait to harvest.. thank you Seedsman, I truly appreciate your services from the time of entering your website, to the popping of the beans👍
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Forbidden Runtz Auto Feminised Seeds
2 week into flower and these 3 girls are doing great.. Highly recommended..
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Forbidden Runtz Auto Feminised Seeds
Only 5 of the 10 germinated which is why I’m giving a bad review. I was compensated already through support so I’ll give a five star review for backing your product!!
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Forbidden Runtz Auto Feminised Seeds
I’m a fairly new grower but these have been the easiest and most enjoyable plants to grow yet. I’m at week 5, early/ mid flower and I’ve had no issues. The growth has been explosive week to week and my buds are starting to frost up. I just ordered some strawberry gorilla and gorilla punch from fast buds. No this grow isn’t finished I just wanted to see how others were doing with their forbidden runts here. Fingers crossed for harvest. Lmk if you have any strain recommendations
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Forbidden Runtz Auto Feminised Seeds
so far the grow is fast and looking beautiful
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