Tropicanna Poison XL Auto by Sweet Seeds

Tropicanna Poison XL Auto is the autoflowering, red-flowered member of Sweet Seeds’ The Red Family, and the automatic counterpart of Tropicanna Poison F1 Fast Version (SWS85). Sold under variety code SWS95, it brings Tropicanna Cookies flavor, up to 24% THC, and striking red-hued flowers into a plant that finishes in about 8 weeks from germination.

Roughly 85% of plants develop the red flower trait, so most of a pack turns into a colorful canopy late in bloom. The buds are resinous and terpene-rich, with a heavy, sweet aroma of mango, earth, and wood laid over a quiet Skunk base.

Height ranges from 60–120 cm (24–47 in), and the breeder lists 400–550 g/m² (1.31–1.80 oz/ft²) indoors and 35–125 g/plant (1.2–4.4 oz/plant) outdoors, solid numbers for an XL autoflower with this much color and flavor.

Tropicanna Poison XL Auto Genetics and Lineage

One parent is an elite, hand-selected Tropicanna Cookies clone carrying a red flower phenotype. Tropicanna Cookies (Girl Scout Cookies x Tangie) is one of the most famous “Super Strong” Cookies strains from the US, prized for its citrus-tropical nose and potency.

The other parent is Red Poison Auto (SWS39), a long-running Sweet Seeds autoflower and a pillar of The Red Family. The result is 58.4% Indica, 40% Sativa, and 1.6% Ruderalis: a balanced hybrid that flowers automatically and passes the red coloring on to around 85% of its offspring.

Aroma, Flavor, and Effect

This strain does not do subtle. The aroma is sweet, intense, and heavy, led by ripe mango and followed by damp earth and woody tones, with a faint Skunk background that gives it depth. It smells like a crate of overripe mangoes stored in an old cedar shed.

The flavor follows the nose closely: tropical sweetness up front, then a grounding earthy, woody finish. The high terpene level keeps the taste strong even late in a session.

With 16–24% THC and around 0.1% CBD, Sweet Seeds describes the effect as stimulating and creative. It lifts the mood and gets ideas moving, which makes it a fit for daytime projects, music, and social settings rather than winding down.

Growing Tropicanna Poison XL Auto Indoors and Outdoors

Indoors, the plant blooms on its own under 18/6 or 20/4, with no switch to 12/12 required, and is ready about 8 weeks after germination. With a potential height of 120 cm (47 in), give it some headroom, and use gentle LST in the first weeks to keep the canopy even.

Start each seed in its final container and keep nutrients moderate; autoflowers have little time to recover from overfeeding or transplanting. The red coloring tends to show most strongly on healthy plants kept in a steady, not-too-warm environment during the final weeks.

Outdoors, sow between spring and mid-summer for a harvest roughly 8 weeks later. In full sun with a rich, well-draining soil, plants yield 35–125 g/plant (1.2–4.4 oz/plant). The short cycle makes it easy to fit more than one round into a season.

Tropicanna Poison XL Auto Characteristics

Strain type	Feminized autoflowering
Variety code	SWS95
Genetics	Tropicanna Cookies elite clone (red flower phenotype) x Red Poison Auto (SWS39)
Indica/Sativa	58.4% Indica / 40% Sativa / 1.6% Ruderalis
THC	16–24%
CBD	0.1%
Effect	Stimulating, creative
Aroma/Flavor	Sweet, mango, earthy, woody, Skunk
Indoor yield	400–550 g/m² (1.31–1.80 oz/ft²)
Outdoor yield	35–125 g/plant (1.2–4.4 oz/plant)
Seed to harvest	8 weeks from germination (indoors and outdoors)
Height	60–120 cm (24–47 in)
Red flowers	Approximately 85% of plants
Best cultivation technique	Early LST in a single final container

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