• Breeding

  • If I wanted to use cannabis seeds for breeding, what are some things I should know before starting a project?

    Creating seeds is a natural process that the cannabis plant does very effectively. As long as there is a male plant in your flower room, you can expect to have plenty of seeds when harvest time comes around. Breeding however, is a more complex process that requires a lot of time and knowledge of your plants, but it’s a very exciting experience for any cannabis enthusiast. If you are comfortable growing cannabis from seed and would like to try your hand at breeding, then be prepared for a long term project. Pollinating your plants is easy, but to create seeds that are stabilized and reliable can take many generations to complete. All of this time and research will pay off though, and you will be rewarded with some great genetics that you can be proud of.

  • What is a good starting point to learn more about breeding cannabis?

    Aspiring breeders can quickly be overwhelmed with information while doing research. Before getting in to the genetic side of things, understanding the cannabis plant and how it works is the first step to making better decisions in your breeding program. Nutrient uptake, environmental reactions, and susceptibility to pathogens and pests are among many traits that need to be considered other than the physical appearance of the plant. There is a wealth of information on the internet for this research, but always qualify your sources to avoid bad information. If you are comfortable with your plant knowledge and you are serious about breeding, the best place to start is with Gregor Mendel and his experiments on pea plants. Mendel’s observations created the basis for modern genetic research, and explain how genes interact with each other according to the offspring. This is very important to know if you want to continue learning  advanced genetic principles and it will give you a better idea of what is happening in your crosses.

  • Seeds

  • Are your seeds feminized?

    We now offer a line of feminized seeds in addition to our original non-feminized seeds!

    Look for the seed boxes marked with an “F” or ask you local dispensary if they carry our feminized strains.

  • What are feminized seeds?

    Feminized cannabis seeds are bred to contain no male chromosomes, so that every plant grown from them will flower as a female.

    We, at Colorado Seed Inc., use our most stable phenotypes in the selection process for feminized seeds. This ensures that you will get the best feminized seeds we can produce. The advantage to feminized seeds is that the grower will get all female plants and not lose plant count by having to pull males, however, there is no guarantee that a few might herm, due to environmental issues or stress during the flower cycle.


  • What is your suggested method of germinating seeds?

    Our growers have had the most-reliable germination results (often over 99%) by planting seeds directly in soil. Our recommendation is to plant fingernail-deep in moistened seed starter or a light soil medium. Once planted, cover with a humidity dome for the first few days and spritz to keep the soil moist. Maintain a temperature of 80° F and keep humidity at 80% until emergence. Most seeds planted in harmony with the moon will crack in two to four days; planted out of phase, seedlings will emerge in five to ten days. Remove the humidity dome when all seeds have cracked.

  • Do you have any high-CBD strains?

    We are in the process of developing high CBD strains but are not yet ready to release them. We have high standards for the seeds we do release, and the CBD lines are taking a bit more time to reach the market. Please check back!

  • How much do your seeds cost?

    Though we provide suggested retail prices to our distributors, each dispensary ultimately sets their own pricing. For current availability and pricing, please contact stores directly.

  • How were these seeds grown?

    These seeds were grown as naturally and responsibly as possible, using organic growing methods.

  • What’s the best way to store seeds?

    Simply keep them in a sealed container, in a cool, dry and dark place with consistent temperatures.

  • Which strains are most potent?

    We’ve always felt that there’s more to potency than THC. If you’re looking for more than just numbers, we’d suggest Guptilla, Hercules, Chemodo Dragon, and Iron Triangle.

  • Which strains are the most Indica?

    Ghost Ship, Krishna Kush, and Night Nurse.

  • Which strains are the most Sativa?

    Chupacabra, Slazerbeam, and Sunburn.