FAQs + Shipping & Return Policies

Q: How should I store SUPER(SEED) when not in use?

A: SUPER(SEED) is solution of Silver ions, suspended in distilled water. It should be stored at room temperature or higher, in the dark & out of any direct light. Additionally, it should always be kept in its original container, with the cap on and the spray-nozzle out. While best used fresh, if stored properly, SUPER(SEED) will remain effective for 8-12 months.

Q: Can I apply SUPER(SEED) once a plant is already flowering? 

A: Yes. This will take longer, as the plant has already dedicated much of her energy into building flowers. New stamens will grow around these existing structures - you may get a couple funky seeds off your treated plant using this method, too. While this works, it’s not ideal - the best time to start SUPER(SEED) is 24-48 hours before switching your light cycle from vegetation into flowering.

Q: Why is SUPER(SEED) so cheap?

A: I believe that cannabis cultivators, breeders and consumers already spend too much on cannabis-specific products, especially feminized seeds and reversal/feminizing sprays. I’ve developed a production process that is cost-effective, and to use an old cliche: those input-conscious savings are passed directly on to the consumer.


Q: How many plants is SUPER(SEED) capable of treating?

A: Depends on the size of the plant. One bottle is generally sufficient for a cubic metre of plant, however; you can dial in the amount based on your needs, and either accelerate or slow down the process.

Q: I think my package was lost in the mail…

A: Have no fear! All packages are insured. If your package is lost by the carrier, I will send you a replacement immediately at no cost to you.

Q: What happens if my bottle(s) froze (but didn't break) during shipping?

A: First, ensure that the bottle is intact. Do not try to open or use any bottle that appears physically damaged or weakened!
Second, store the bottle in a dark place, and allow it to return to room temperature (this can take a few days). Shake 2-3 times per day. Once returned to room temperature, you may use as indicated.

Please note: the reading on a TDS metre may measure lower after the product has frozen or boiled. This is because the silver particles will amalgamate together, forming larger albeit fewer particles. Don’t stress - it is just as effective, as the plants will be receiving the same amount of silver overall. As always, shake well before use! SUPER(SEED) maintains integrity longer if stored at room temperature, out of direct light - do not refrigerate.

Q: What happens if my bottle(s) broke during shipment?

A: Unfortunately, this does happen. I always recommend choosing Purolator over Canada Post; while pricier, they do actually care about the packages they ship. 

If your bottle arrives damaged or broken, please take a few pictures documenting the damage, and email them to me with your order number to alex@superseedfeminizer.ca. I will respond with a link to either the Canada Post or Purolator damage claims page, which we will both need to complete in order to be reimbursed.

In the event the breakage was due to sub-freezing temperatures, your order will be refunded (minus the cost of shipping - as I am the sole proprietor and cannot afford to reimburse shipping immediately, we will need to wait for the claim to be recognized and have the carrier refund the shipping first), and we can try shipping again when temperatures have increased. You can opt to have a replacement sent instead, however it is not recommended during these temperatures. If the replacement also arrives broken, neither myself nor SUPER(SEED) will offer a second replacement or refund.

If the order broke due to carelessness/non-weather related incidents, you are welcome to choose whether you'd like a replacement or refund.

Don't see your question listed? Use the chat-box in the bottom right-hand corner of your screen, and I'll respond as soon as possible. 

May your favourite cultivars live on!

SUPER(SEED) allows growers, breeders, and plant enthusiasts to easily stimulate the production of feminized pollen in cannabis (and other) plants.

By using this pollen on an another untreated, female plant in her Flowering cycle, it is possible to produce seeds that will contain only female chromosomes – creating feminized seeds.


SUPER(SEED) is efficient to produce and use, and is the least chemically complicated solution known for suppressing ethylene-production in plants.

Ethylene is a plant hormone, stimulating different kinds of growth, as well as the ripening of fruits and seeds. Ethylene accumulation in your refrigerator – caused by the off-gassing of fruits and vegetables – causes produce to ripen and spoil more quickly!

By suppressing ethylene in female cannabis, the plant is unable to produce flowers normally and – in what is truly a botanical miracle – will begin producing pollen as a final attempt at ensuring her genetic survival. This pollen, when used to fertilize another untreated female plant, will result in exclusively feminized seeds.

In addition to botanical applications, specific formulations of elemental Silver have uses in modern medicine, and it is under constant study for its antimicrobial and protective properties1.

1 https://www.mdpi.com/2079-6382/9/1/36/htm Antibacterial Activity of Colloidal Silver against Gram-Negative and Gram-Positive Bacteria, 2020, Dominguez et. al

Female C. sativa plant, approximately 6 days into treatment with SUPER(SEED).
Female C. sativa plant, approximately 6 days into treatment with SUPER(SEED).