Seeds
White Runtz Fast Feminised Seeds
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SKU: HDS-WHRUN-FAST-FEM
Easy to grow, vigorous plants with high yield potential.
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Flowering Type
Early/fast
Parental lines
White Runtz x Elite OG 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
Dry, Warm
From the breeder
Easy to grow, vigorous plants with high yield potential.
Humboldt Seed Org. breeder notesParental lines
White RuntzElite OG Auto
Easy to grow, vigorous plants with high yield potential.
White Runtz FAST is descended from a particular pheno-type of Runtz that has subsequently been crossed with an elite OG Auto with the effect of imparting a faster-flowering time rather than auto-flowering characteristics. This facet makes it suitable for cultivation over a wider range of latitude. Great choice for beginners.
The genetic make-up of White Runtz FAST is 70% indica, 20% ruderalis and 10% sativa. The White Runtz element provides a low-maintenance plant with a vigorous character and large yields into the bargain. Leaves are very dark and these serve to highlight the 'white' colour of the plentiful resin. Mature plants display purple colouration in the buds as well as a full range of autumnal shades.
The only caveat is that these are hungry plants so make sure they're well fed and make sure that any transplanting is done early to prevent plants becoming root-bound. Highly-resistant to drought, pests and diseases. Its spherical structure makes this strain a good selection in areas with high winds.
Indoors flowering takes 50 - 55 days with yields of 450 - 500gr/m2 while outdoors in northern latitudes harvest will be late September, each plant capable of producing up to 1000 gr. Although branches are strong the weight of the buds means that support/trellising is recommended, especially outdoors where plants can grow to be 250 cm. tall.
Scents and flavours of sweet candy cane with some spicy pine and sour citrus notes. Also fuel and black pepper undertones. THC content is around 19 - 21% with 0.1% CBD. The effects are functional for daytime use and a range of outdoor activities. White Runtz FAST helps with mild pain relief with its long-lasting, mild body sensations.
Brand/breeder
Humboldt Seed Org.
Parental lines
White Runtz x Elite OG Auto
Flowering type
Early/fast
Sex
Feminised
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Suitable climates
Dry, Warm
SKU
HDS-WHRUN-FAST-FEM
Early/Fast outdoor timeline
Fast / Early strains keep the photoperiod growth pattern, but they begin flowering earlier and usually finish sooner — helping outdoor growers harvest before late-season weather becomes a problem.
Stage 1
Germination / Early Start
March – April
Wait for: warmer days, lower frost risk, stable spring weather
Watch for: cold snaps, excess moisture, slow early growth
Stage 2
Seedling / Transplant
May
Wait for: steady light, mild conditions, protected early growth
Watch for: transplant stress, pests, wind exposure
Stage 3
Vegetative Growth
June – July
Wait for: long bright days, healthy expansion, strong structure
Watch for: overcrowding, nutrient issues, insect pressure
Stage 4
Flowering
From late July
Wait for: first signs of bloom, good airflow, settled conditions
Watch for: humidity, mould pressure, poor weather
Stage 5
Harvest
From early September
Wait for: ripe trichomes, dense finished flowers, harvest readiness
Watch for: cutting too early, rain, bud rot
Indoor Early/Fast timeline
Fast / Early strains are most valuable outdoors, where earlier flowering and shorter bloom times help growers harvest before poor autumn weather. Indoors, their main benefit is a faster flowering phase than photoperiod versions.
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 3–6+
Vegetative Growth
Desired plant size and strong structure
Wait for: desired plant size and strong structure
Watch for: overcrowding, uneven growth, training stress
6–10 weeks
Flowering Phase
Strong bud formation and steady flower development
Wait for: strong bud formation and steady flower development
Watch for: humidity issues, poor airflow, plant stress
Harvest
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: harvesting too early or pushing plants too long
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