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 notes

Aroma

Fruity

Parental lines

Mythic OGField CookiesGravenstein

Description

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.

Characteristics

Brand/breeder

Atlas Seed

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

Grow guide

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

Reviews

Based on 1 review

Verified Customer

Anonymous

Monrovia, US

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.

Was this review helpful?

Yes

Report