Growers Choice Cannabis Seeds is proud to offer the highest germination guarantee in the industry. We promise at least 90% of your seeds will germinate. If they don’t, we will replace them free of charge.*When you order from us, you receive high-quality seeds that have been tested to ensure a germination rate of at least 90% (two-seed minimum). Though some visual markers may be used to predict a seed’s viability, we strongly recommend you attempt to germinate every seed you purchased, regardless of size, color, or density.

To be covered by the Growers Choice Cannabis Seeds 90% Germination Promise, you must precisely follow the Germination Method detailed below.

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Quick Reference Water Glass/Paper Towel Germination Method:

  1. Empty your cannabis seeds into a glass of pure water (distilled, rain, or spring). Soak your seeds for 14 to 18 hours. They should sink to the bottom of the glass within the first few hours. If they don’t do so on their own, tap them gently.
  2. At the end of the soaking period, pour the water and seeds onto a layer of paper towel on a plate, and drain off any excess water.
  3. Fold the wet paper towel over the seeds so they are completely covered, and place the plate in a warm, dark space. The temperature should stay at 75 – 80 degrees Fahrenheit during this period. (To keep this temperature, consider placing the seeds on a warm appliance, such as the back of the fridge, or use a seed mat.)
  4. During the germination process, keep the paper towel well-saturated but don’t let the seeds sit in a pool of water. Check your seeds intermittently, watching for the taproot that will begin to grow.
  5. The seeds are ready for planting when the taproot is 1/4- to 3/4-inch long. This generally takes between three and seven days, but could take up to two weeks.
5 Simple steps for germination for premium cannabis seeds.

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Download our cannabis seed Quick Start Germination Guide and get started today!
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Download our cannabis seed Quick Start Germination Guide and get started today!
Download Now

Please note: the Germination Promise extends only to cannabis seed germination. Due to the wide range of human and other outside factors involved in the growing period, our Germination Promise cannot cover any issues with plant growth following germination. You must follow the extended instructions listed below to be eligible for replacement.

The Germination Process for Cannabis Seeds

Germination is the first step of the growth process for your cannabis seeds. If your seeds germinate successfully, they should grow into healthy, high-producing cannabis plants. Cannabis seeds need three things in order to germinate:

Moisture
When the taproot breaks free of the seed shell, it must have easy and immediate access to water in order to develop.

Darkness
Plant roots are buried beneath the soil and likewise, this first tiny root needs darkness to develop.

Warmth
Like most living things, cannabis roots develop best when they are kept comfortably warm, 75-80 degrees Fahrenheit.

Optional Scuffing

Scuffing the shell of the cannabis seeds with fine sandpaper (60 to 200 grit) lets the water more easily soak through the shell and kickstart germination. The easiest way to do this is to form a tube with a piece of sandpaper, with the textured surface on the inside. Place your thumb over one end and drop in your seeds. Then, placing your finger over the open end of the tube, shake the tube 20 times.

Extended Information

To begin the “Water Glass/Paper Towel” Cannabis Seed Germination Method, you will need a few simple items you probably already have around the house:

  • Thick paper towel with no dyes or perfumes, preferably unbleached
  • Distilled or spring water (bottled), or rain water. (We cannot guarantee successful germination in tap water. If you must use tap water, pour it a few days early, and let it sit out before beginning the germination process.)
  • A glass or cup, about 8oz in size
  • A glass or plastic dinner plate (do not use styrofoam)
  • Tweezers (don’t touch the seeds with your bare hands)

Step One