Seeds
Amsterdam Amnesia Feminised Seeds
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SKU: dp-amsterdam-amnesia
Classic, Cannabis Cup-winning sativa with great yields and very high THC.
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Flowering Type
Photoperiod
Parental lines
South Asian x Jamaican landraces
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Photoperiod flowering time
8 to 10 weeks
Yield indoor
High Yield (450-600gr/m2)
Plant size
Large
Suitable climates
Dry, Humid, Warm
From the breeder
Classic, Cannabis Cup-winning sativa with great yields and very high THC.
Dutch Passion breeder notesAroma
Fruity
Parental lines
South AsianJamaican landraces
Classic, Cannabis Cup-winning sativa with great yields and very high THC.
Amsterdam Amnesia is the classic strain that originated in the Netherlands back in the day, a.k.a. Amnesia Haze. Amsterdam Amnesia is a sativa-dominant strain with commercial yield potential as well as very high THC production. It is a wonderful blend of classic Haze varieties.
This is a plant for indoor cultivation except in warmer climates. Plants take 9 - 10 weeks to complete the flowering cycle. Its thin, sativa leaves allow for plenty of light to reach interior bud sites and this strain is also well-known for being highly resistant to spider mites. Amsterdam Amnesia undergoes a lot of stretch when put into the flowering stage so growers are warned to allow plenty of headroom when growing indoors. Buds are unusually dense and compact for a sativa. Yields are very high.
Amsterdam Amnesia has a scent and flavour of citrus and produces between 20 - 25% THC. The effect is euphoric, energising and uplifting but can be very potent for the novice.
Brand/breeder
Parental lines
South Asian x Jamaican landraces
Variety
Sativa dominant
Flowering type
Photoperiod
Sex
Feminised
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Yield outdoor
Very High Yield (above 750gr/plant)
Yield indoor
High Yield (450-600gr/m2)
Plant size
Large
Photoperiod flowering time
8 to 10 weeks
Suitable climates
Dry, Humid, Warm
Aroma
Fruity
SKU
dp-amsterdam-amnesia
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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