18 or over?

This cannabis seed website is intended for adults. Confirm your age to continue browsing.

No worries.

This site is for adults 18 and over. Come back when you're of age.

Outdoor macro photograph of the Forbidden Runtz Auto flower on a living plant
autoflower thc Beginner

Forbidden Runtz Auto Seeds

Forbidden Runtz Auto seeds offer an indica-leaning autoflower hybrid profile with sweet, fruity, citrus and grape flavours.

Pick a pack
Grows well in: For Australian conditions, sowing is commonly planned from September to November, while autumn harvest planning typically centres on March to May. Autoflower timing can produce an earlier finish depending on the start date, local climate and cultivation environment. Check applicable state, territory and local requirements before planting.

Specifications

Indica / Sativa 70 / 30
THC19–24%
CBD0–0.5%
Flowering9–10wk
Difficulty Beginner
Genetics
Forbidden Candy × Runtz Auto; autoflowering hybrid
Climate
Hot humid · Hot dry · Temperate
Height indoor
up to 150 cm
Height outdoor
up to 170 cm
Yield indoor
up to 550 g/m²
Yield outdoor
up to 400 g/plant

Effects

euphorichappyrelaxedheavyuplifting

Flavours

fruitysweetcandycitrusgrape

Terpenes

limonenemyrcenecaryophyllene

Genetics & effects

Forbidden Runtz Auto is a feminised autoflowering hybrid created from Forbidden Candy and Runtz Auto genetics. Its profile is approximately 70% indica and 30% sativa, bringing together a compact growth cycle and a richly sweet character. Outback Seed Bank presents this variety for growers seeking an approachable addition to an autoflower seed collection.

The listed THC range is 19–24%, with CBD at up to 0.5%. Experiences are subjective, but adult consumers may describe the effect as beginning with a happy, euphoric or uplifting mood before becoming more relaxed and physically heavy. Aroma and flavour lean towards fruity candy, bright citrus and ripe grape. Limonene, myrcene and caryophyllene contribute to its layered aromatic profile, although expression can vary between plants and growing conditions.

Explore autoflower seeds, high thc seeds, the Australian grow guide, and the planting calendar.

Explore autoflower seeds, high thc seeds, the Australian grow guide, and the planting calendar.

Growing in Australia

This beginner-friendly autoflower can suit hot, humid, hot, dry and temperate Australian settings. Spring planting generally falls between September and November, when strengthening light and warmer conditions can support early development. As autoflowering plants progress according to age rather than changing daylight hours, growers can plan more than one seasonal window where local conditions allow.

Consistent airflow, sensible watering and a stable root zone help reduce risk from heat stress and mould. In very warm districts, afternoon shade may limit harsh late-day exposure. In humid areas, extra spacing around branches can keep air moving through the canopy. Browse more feminised seeds when comparing cultivation styles.

Indoor

Indoors, Forbidden Runtz Auto may reach up to 150 cm, so early canopy planning is useful where vertical space is limited. Gentle branch positioning can encourage a broader structure without placing unnecessary stress on the plant. A steady environment, balanced nutrition and good extraction will support its natural pace.

  • Cycle: approximately 9–10 weeks
  • Indoor height: up to 150 cm
  • Indoor yield: up to 550 g/m²
  • Difficulty: beginner

These figures are catalogue estimates rather than fixed outcomes. Light quality, container size, environment and grower experience can all influence height, colour, aroma and final yield.

Outdoor

Outdoors, plants may grow to 170 cm and produce up to 400 g per plant in favourable conditions. Select a bright, well-drained position with protection from severe wind. In hot, dry regions, mulch can moderate root-zone temperature, while humid gardens benefit from open spacing and regular canopy checks.

Harvest

For Australian outdoor schedules aimed at the traditional autumn window, harvest commonly falls from March to May. Because this is an autoflower, a September–November start may finish earlier depending on sowing date and conditions, while later cycles can align with autumn. Assess plant maturity directly rather than relying only on the calendar. Finished flowers may display dense structure, vivid colour and a sweet citrus-grape aroma.

Frequently asked questions

What THC and CBD ranges are listed for Forbidden Runtz Auto?

The reviewed specification lists 19–24% THC and 0–0.5% CBD. These figures describe the catalogue profile; phenotype, environment and testing can change measured levels.

How long does Forbidden Runtz Auto take to flower?

The listed flowering window is 9–10 weeks. Actual timing can vary with phenotype and growing conditions, so use the range as a planning reference rather than a guarantee.

Which Australia conditions suit Forbidden Runtz Auto?

The reviewed profile lists hot and humid, hot and dry and temperate conditions and a beginner difficulty rating. Local daylight, weather, site exposure and care still influence how a plant develops.

What seed format and genetics does Forbidden Runtz Auto have?

Forbidden Runtz Auto is an autoflowering hybrid created from Forbidden Candy × Runtz Auto, with 30% sativa and 70% indica genetics, but the reviewed facts do not establish whether the seeds are feminised.

What aroma profile and terpenes are associated with Forbidden Runtz Auto?

Its listed flavours are fruity, sweet, candy, citrus and grape, with limonene, myrcene and caryophyllene, although no favourite aroma or characteristic colour is established.

How tall can Forbidden Runtz Auto grow?

It can reach up to 150 cm indoors and 170 cm outdoors, while its mould resistance is not established.

Cannabis plant beside grapevines in a dry hilltop garden under bright Australian sunlight

Growing Cannabis in South Australia: Mediterranean Conditions

A climate-focused overview of growing cannabis in Adelaide and regional South Australia, covering Mediterranean conditions, seasonal variability, spring planning and responsible legal research.

Dense Outback OG-style cannabis cola beside red desert soil and spinifex grass in warm late-afternoon sun

Outback OG: The Strain Selected for Australian Conditions

Meet Outback OG, an OG-style cannabis strain selected with Australian growers in mind.

Two autoflower cannabis plants at different growth stages on a deck in bright Australian summer light

Autoflowers in Australia: Two Harvests in One Summer

A two-cycle autoflower summer may be possible in parts of Australia when short lifecycle cultivars, suitable weather and an early start align.

Compact frosty Northern Lights cannabis plant glowing in the Australian dusk

Growing Northern Lights in Australia: Strain Guide

Northern Lights is a compact, indica-dominant cannabis variety suited to controlled indoor spaces and warm, sheltered outdoor sites.