Critical Old School Autoflowering - Black Elephant Genetics

Critical Old School Auto: the spirit of a classic Critical with a sativa soul

Critical Old School Auto by Black Elephant Genetics starts from Critical, a benchmark genetic in Europe born from an Afghan crossed with Skunk and known for its great balance of yield and speed, crossed with a fourth-generation male that provides the autoflowering trait. The result is a clearly sativa-dominant (80%) autoflowering strain, forgiving and productive, with a 70-80 day cycle from germination, flowers that can show reddish tones and a floral, spicy, sweet, citrus and pine aroma.

Why choose Critical Old School Auto

✓ Autoflowering: flowers on its own, no photoperiod change needed.
✓ Short cycle: 70 to 80 days from germination.
✓ Sativa-dominant: a vigorous plant with an open structure and flowers with reddish tones.
✓ Good yield: up to 450 g/m² indoors and up to 350 g/plant outdoors.
✓ Complex aroma: floral and spicy, with sweetness, citrus and a touch of pine.

Indoor cultivation

Develops a slender, sativa-dominant plant with open side branches, yielding 300-450 g/m² and completing its cycle in 70-80 days from germination. Sow it directly in its final pot to avoid transplant stress, feed it lightly during the first weeks and keep the same light schedule throughout. We recommend a high-quality airy substrate such as coco coir and regular pH control (6.0-6.5 in soil). Instead of topping, gentle LST helps spread the light across its branches.

Outdoor cultivation

Outdoors it reaches up to 1 m in height and can yield between 60 and 350 g per plant, depending on growing conditions. Plant it in large pots or directly in the ground with an airy substrate, in a spot that gets direct sun for much of the day; like any good sativa, it loves light and warmth. As it does not depend on the photoperiod, it flowers on its own whatever the day length, allowing staggered sowings throughout the warm season.

Aroma and flavour

A rich, evolving profile: floral notes and a peppery, spicy touch open the bouquet, joined by a gentle sweetness. Above them rise citrus nuances and a fresh pine base that grow stronger in the final weeks of the cycle.

Technical specifications

Get the most from your harvest

Sativa-dominant autoflowering strains like Critical Old School Auto appreciate gentle, steady nutrition from day one. Pair it with the Madame Grow fertilizer kits, covering growth, flowering and flower bulking, formulated in our laboratory in Andalusia.

Frequently asked questions

Is it suitable for beginners?
Yes. Its short cycle, low maintenance and the fact that you do not need to change the photoperiod make it a very forgiving choice. Simply sow it in its final pot and feed it lightly.

What sets it apart from other Critical strains?
Its strong sativa dominance (80%), which gives it a more open structure, and a floral, spicy and citrus aromatic profile with a pine base. Its flowers can also show reddish tones during flowering.

How should I store them until sowing?
In a cool, dry and dark place, ideally in the fridge inside an airtight container. This preserves their germination power for a long time.

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✓ Black Elephant Genetics is a registered trademark of Vegetal BioPlant S.L. · Andalusia, since 2017.

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