Seeds
Jack Herer Regular Seeds - 10
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SKU: HUMB-JHR-10-R
Big plants with huge yields, high potency and a balanced effect.
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Flowering Type
Photoperiod
Parental lines
Northern Lights x Trainwreck x G13
THC content
Information not available
CBD content
Information not available
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
Big plants with huge yields, high potency and a balanced effect.
Humboldt Seed Co. breeder notesParental lines
Northern LightsTrainwreckG13
Big plants with huge yields, high potency and a balanced effect.
Jack Herer is a legendary indica/sativa hybrid. This version is an F5 giving a high degree of stability and uniformity. Growers can expect big yields of enormous, light green buds and high to very high levels of THC.
Jack Herer is a 3-way cross of Northern Lights, Trainwreck and G13. Indoors, flowering times are in the region of 55 days while outdoors in northern latitudes growers will be able to harvest their crops between September 25th and October 10th.
Jack Herer has a powerful scent of pine and flavours that include pine, eucalyptus and Skunk. THC is between 17 - 22% and its effect is potent but well-balanced between the physical and cerebral.
Brand/breeder
Parental lines
Northern Lights x Trainwreck x G13
Flowering type
Photoperiod
Sex
Regular
Suitable climates
Dry, Warm
SKU
HUMB-JHR-10-R
Photoperiod outdoor timeline
Photoperiod strains rely on seasonal daylight changes, so harvest timing is closely tied to your local climate.
Stage 1
Germination / Early Start
March – April
Wait for: frost risk easing, stronger spring light
Watch for: cold snaps, slow starts, excess moisture
Stage 2
Seedling / Transplant
April – May
Wait for: milder nights and settled weather
Watch for: transplant shock, wind exposure, pests
Stage 3
Vegetative Growth
June – July
Wait for: long days, regular feeding, healthy expansion
Watch for: overcrowding, nutrient issues, insect damage
Stage 4
Flowering
August – September
Wait for: shortening days, dry airflow, branch support
Watch for: mould, botrytis, high humidity, bad weather
Stage 5
Harvest
Late September – October
Wait for: ripe trichomes, dense finished flowers
Watch for: autumn rain, rot, early frosts
Indoor photoperiod timeline
Photoperiod strains give indoor growers more control over size, shape, and when flowering begins.
Week 0
Germination
Strong early establishment
Wait for: strong early establishment
Watch for: inconsistent starts, excess moisture
Week 1–2
Seedling
Stable structure and healthy growth
Wait for: stable structure and healthy growth
Watch for: stretch, early stress
Week 3–6+
Vegetative Growth
Desired plant size and canopy shape
Wait for: desired plant size and canopy shape
Watch for: overcrowding, uneven growth, training stress
7–12+ weeks
Flowering Phase
Strong flower formation and steady development
Wait for: strong flower formation and steady development
Watch for: humidity, airflow, support issues
Harvest
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: cutting too early or pushing too long
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