Zero Day s1 – Resin production, genetic stability, and classic hash flavor in a high-performance hybrid

Zero Day s1 is one of the most refined and consistent strains in the Oracle Seeds catalog.
Developed through 21 consecutive backcrosses, this line BX21 has become established as a reference feminized genetic line
for those who are looking for fast flowering, abundant resin, and a powerful aromatic profile. Its combination of stability, yield, and flavor
places it among the most solid options for indoor and outdoor cultivation.

Genetic history and development

The creation of Zero Day s1 responds to a clear objective, to produce a plant fast, potent, and extremely uniform.
The original cross South African Kwazulu x Terra Vella Bx20 provides hybrid vigor, branched structure, and a complex aromatic background.
Over the course of 21 generations, plants with the best floral density, higher trichome production, and a terpene profile true
to classic 1980s hash were selected.

Appearance and structure

Zero Day s1 presents a balanced architecture with a tendency toward lateral branching, short internodes, and compact main colas.
Its flowers stand out for:

• Extremely high density
• Favorable calyx-to-leaf ratio
• Thick, milky trichomes
• Abundant resin from mid-flowering onward

This combination makes it an ideal genetic line for growers who are looking for maximum production in the shortest time possible.

Aroma and organoleptic profile

The aroma of Zero Day s1 is one of its most distinctive traits. It presents an intense profile dominated by vintage hash,
accompanied by sweet tropical notes that add freshness and depth. During curing, the aromatic intensity increases
and earthy and fruity nuances typical of its African heritage are revealed.

Effects

With levels of THC from 19 to 21 %, Zero Day s1 delivers a relaxing and stable physical effect, with a slight mental clarity that prevents
overstimulation. Its content of CBD at 0.9 % softens the initial impact and provides a balanced experience, ideal for unwinding,
reducing stress, or ending the day.

Cultivation and yield

Zero Day s1 adapts to multiple setups, from SOG and SCROG to organic or mineral cultivation. Its genetic stability facilitates
tolerance to pruning, training, and intensive feeding.

• Indoor flowering: 55–60 days
• Indoor yield: 450–550 g/m²
• Outdoor yield: 450–500 g per plant
• Outdoor harvest: late September
• Genotype: 60 % índica / 40 % sativa

Technical sheet

• Suitable for indoor and outdoor cultivation
• Sex: feminized s1
• Cross: South African Kwazulu x Terra Vella Bx20
• Flowering: 55–60 days
• Indoor production: 450–550 g/m²
• Outdoor production: 450–500 g/plant
• THC: 19–21 %
• CBD: 0,9 %
• Flavor: 1980s hash with tropical fruits

Frequently asked questions

What makes Zero Day s1 so stable?

Its lineage BX21, the result of 21 generations of backcrossing, guarantees exceptional uniformity in structure, aroma, and production.

Is it suitable for beginners?

Yes. It is a very predictable, resilient, and fast-flowering genetic line, perfect for growers with little experience.

Is it good for extractions?

Yes. Its resin production is high, with thick trichomes ideal for rosin, hash, and dry sift.

When is it harvested outdoors?

At the end of September, which makes it suitable for climates where autumn arrives early.

What flavor does Zero Day s1 have?

A classic profile of 1980s hash accompanied by sweet tropical, earthy, and resinous notes.

Does it tolerate pruning and training techniques?

Yes. Its genetic stability allows it to respond very well to LST, topping, lollipopping, and SCROG.