Flowering Type

Autoflowering

Parental lines

Tropicanna Cookies x Red Poison Auto®

THC content

High THC (16-24%)

CBD content

Low CBD (0-1%)

Autoflowering seed to harvest time

8 to 10 weeks

Yield indoor

High Yield (450-600gr/m2)

Plant size

Short

Suitable climates

Cool, Dry, Hot, Temperate, Warm, Wet

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From the breeder

Red flowering clusters adorn these plants. Yield and THC potential is high.

Sweet Seeds breeder notes

Aroma

EarthyFruityWoody

Parental lines

Tropicanna CookiesRed Poison Auto®

Description

Red flowering clusters adorn these plants. Yield and THC potential is high.

Tropicanna Poison XL Auto Feminised - with FREE seeds!

Tropicanna Poison XL Auto is an indica-dominant hybrid that was bred by crossing Tropicanna Cookies with Red Poison Auto. This is a fast, potent strain with good yield and high THC potential.

A plant with red-hued flowers, Tropicanna Poison XL Auto takes just 8 weeks from seed through to harvest. Indoor growers will harvest between 400 - 550 gr/m² of dried weight while outdoors each plant can deliver 35 - 125 gr. Buds are very resinous and produce an intensely sweet scent.

Flavours and scents are sweet, intense and heavy, with notes of mango, earth, wood and with a Skunk undertone. THC content is between 16 - 24% while CBD is low at 0.1%. The effect is stimulating and creative.

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Characteristics

Brand/breeder

Sweet Seeds

Parental lines

Tropicanna Cookies x Red Poison Auto®

Type

Indica / Sativa hybrid

Color

Purple

Flowering type

Autoflowering

Sex

Feminised

THC potential

High THC (16-24%)

CBD potential

Low CBD (0-1%)

Yield potential outdoor

Modest Yield (up to 200gr/plant)

Yield potential indoor

High Yield (450-600gr/m2)

Plant size

Short

Seed to harvest time (autoflowering)

8 to 10 weeks

Suitable climate

Cool, Dry, Hot, Temperate, Warm, Wet

Aroma

Earthy, Fruity, Woody

SKU

SS-TRPXL-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

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Greg Gallagher 17.03.2026

Flavour: Excellent Found Strain: Online Browsing

buyer

Came out on the short side, but some great looking buds, with a great aroma

As described: YesExpected Yield: ExpectedRecommend to others: Yes

Nicholas Rowe 05.05.2025

Flavour: Excellent Found Strain: Online Browsing

buyer

This was was best run so far! Super simple grow from seed to harvest She grew beautiful dark purple and deep red hued buds. She's a stunning plant! So good, that I planted 2 more after I harvested the first one! 🤙

As described: YesExpected Yield: ExpectedRecommend to others: Yes

Joseph Maxie 25.04.2024

Flavour: Excellent

buyer

Vary easy to grow thc lvls above 24 % my highest was 28% thc

As described: YesExpected Yield: ExpectedRecommend to others: Yes

Anonymous 09.04.2024

buyer

A little finicky came in a pack of 7 and 2 didn't make it 5 did. Smells good looks good Your site

Please note that some customers choose to leave a rating without writing a review, and because of this the number of ratings will differ from the number of reviews.

Tropicanna Poison XL Auto Feminized Seeds

Flowering Type

Autoflowering

Parental lines

Tropicanna Cookies x Red Poison Auto®

THC content

High THC (16-24%)

CBD content

Low CBD (0-1%)

Autoflowering seed to harvest time

8 to 10 weeks

Yield indoor

High Yield (450-600gr/m2)

Plant size

Short

Suitable climates

Cool, Dry, Hot, Temperate, Warm, Wet

Autoflowering outdoor timeline

Indoor autoflowering timeline

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Tropicanna Poison XL Auto Feminized Seeds