Seeds
TriCross Auto Feminized Seeds
SKU: ATL-TRI-AUTO-FEM
Potent, frosty indica-dominant auto with a great smell along with some purple phenotypes.
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Flowering Type
Autoflowering
Parental lines
Mythic OG x Field Cookies x Gravenstein
THC content
Very High THC (25%+)
CBD content
Low CBD (0-1%)
Autoflowering seed to harvest time
10 to 12 weeks
Yield outdoor
Modest Yield (up to 200gr/plant)
Plant size
Short
Suitable climates
Temperate
From the breeder
Potent, frosty indica-dominant auto with a great smell along with some purple phenotypes.
Atlas Seed breeder notesAroma
Fruity
Parental lines
Mythic OGField CookiesGravenstein
Potent, frosty indica-dominant auto with a great smell along with some purple phenotypes.
TriCross Auto is a 70% indica strain, a three-way cross of Mythic OG, Field Cookies and Gravenstein strains. TriCross Auto has excellent vigour and good resistance to mould, drought and the cold weather. 15 - 25% of plants display purple hues at maturity. Atlas Seed claims between 99.9% - 99.96% female plants from these auto-flowering seeds.
Plants have a semi-branched structure and grow to a height of 100 cm. or so. Time from seed to harvest is 75 days with yields of 80 - 125 gr/plant. Buds are compact, dense and very frosty.
TriCross Auto has a scent that includes currants, candied citrus and fuel. THC production is very high at between 16 - 26% while CBD levels are very low at 0.177% CBD.
Brand/breeder
Parental lines
Mythic OG x Field Cookies x Gravenstein
Variety
Indica dominant
Flowering type
Autoflowering
Sex
Feminised
THC content
Very High THC (25%+)
CBD content
Low CBD (0-1%)
Yield outdoor
Modest Yield (up to 200gr/plant)
Plant size
Short
Autoflowering seed to harvest time
10 to 12 weeks
Suitable climates
Temperate
Aroma
Fruity
SKU
ATL-TRI-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
Based on 1 review
TriCross Auto Feminised Seeds - 5
No problems with germination, healthy mid-size plants with frosty nugs. Wonderful cotton-candy like smell at finish. No problems with mold outdoors.
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