Seeds
Extreme Impact Auto Feminised Seeds
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SKU: HWS-EXIMP-AUTO-Fem
Fast, potent strain with high yields and physical effect.
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Flowering Type
Autoflowering
Parental lines
Mazar Auto x Fast&Vast 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
Temperate
From the breeder
Fast, potent strain with high yields and physical effect.
Heavyweight Seeds breeder notesParental lines
Mazar AutoFast&Vast Auto
Fast, potent strain with high yields and physical effect.
Live life to the extreme and brace yourself for impact, this indica dominant plant is a heavy hitter that delivers a knockout punch! Extreme Impact works well in all mediums and is really simple to grow; yields are consistently large, producing a wealth of fat sticky buds with ease for even the novice gardener. The plant performs brilliantly outdoors or in a greenhouse and it's very resistant to mould and pests.
A deep hash taste gives way to notes of lemon / lime and the aroma is pungent and intense. Be warned, the effect is extremely powerful; cerebrally captivating and physically long lasting. Treat with caution if partaking in the day, as you might awake from a deeply stoned slumber many hours later!
Brand/breeder
Heavyweight Seeds
Parental lines
Mazar Auto x Fast&Vast Auto
Flowering type
Autoflowering
Sex
Feminised
THC content
High THC (16-24%)
CBD content
Low CBD (0-1%)
Suitable climates
Temperate
SKU
HWS-EXIMP-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
