Canna Rev - STS Spray

Canna Rev has developed a dependable, easy-to-use STS spray with an excellent shelf life—perfect for growers who value consistency and quality. Backed by a strong foundation in agricultural crop management through the University of Alberta, and supported by a skilled team of chemistry technicians from the Northern Alberta Institute of Technology, Canna Rev ensures their formula is both effective and trustworthy. Their lab practices are further refined with guidance from a medical lab technician to maintain the highest standards in production.

Preserve Your Genetics. Create Your Legacy.

Whether you're a hobby grower or managing a full-scale production facility, there’s real value in preserving your genetics. Don’t let your favorite strains fade—use STS Feminizing Spray to put away seed stock and hang on to those unique traits.

Why Use STS Spray?

Creative Cross-Breeding

Growers of all experience levels can now create their own unique strains by selecting plants with desirable characteristics and breeding them together. STS spray makes it possible to produce feminized pollen, enabling you to breed with confidence—right at home.

Be Your Own Seed Source

Sick of spending a fortune on seeds? With STS spray, you can preserve your own genetics for future crops at just pennies per use. It's the perfect tool for building your own seed library and ensuring your best plants live on.

How to Use the STS Feminizing Spray

When to Apply

Apply STS spray the same day you reduce the light cycle to induce flowering.

How Much to Apply

Spray the selected branches or the entire plant until thoroughly coated. You’ll notice a light residue on the leaves after it dries—this is expected and desirable. A 100mL bottle is more than enough to treat multiple branches or even a full plant.

Treatment Schedule

Just three treatments over two weeks—that’s it.
Apply once every 7 days, beginning the day you flip to flower. Most plants will begin to show male characteristics within this timeframe, depending on the phenotype.

Scientifically Backed Performance

Unlike many products on the market, this STS spray is based on university field trials, not guesswork. With research-driven formulation and precision chemistry, you’re getting a product built on solid scientific foundations—not “bro science.”

Superior Shelf Life & Purity

This spray is manufactured using highly purified water and analytical-grade ingredients to ensure maximum effectiveness and long shelf life. Unlike other sprays that degrade quickly, Canna Rev’s small-batch production and quality control prevent silver from precipitating out of solution.

Storage Tip: Keep in a cool, dark place for optimal longevity.

Want to preserve your prized genetics and take your breeding to the next level?
STS Feminizing Spray by Canna Rev is the tool you’ve been waiting for.