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Autoflowering cannabis seeds reduce the difficulty of cultivating marijuana plants. This allows nearly any kind of breeders to produce their own strain at home. In addition, feminized version of an auto strain gives you a high guarantee that you will not have any non-bud producing male plants.

While it is easy to cultivate autoflowering feminized marijuana seeds for their buds, how hard is it to breed these plants. Let us show you our guide on breeding autoflowering feminized plants.

Before Getting Started

To get started on making your own auto fem seeds, you will need a specific area in your home where the seed-producing plant will grow. If you plan to create seeds and cannabis buds at the same time, this area will need to be farther apart from your main grow room.

The goal of two separate grow rooms is to avoid unintentional contamination of pollen. Pollinated female plants will slow down its production of cannabinoids in order to make its seeds. This means that your yield will go down if rogue pollens find its way to your main grow room.

Because we are breeding feminized autoflowering seeds, we will need two female plants. You can make it easier for yourself by growing feminized seeds from the start. You can still make your own fem seeds out of regular ones. In this case, you will need to root out any male plants that grow out of your regular seeds as early as possible. The pollen sac will tell you which ones are males. These sacs have a spherical shape. Male plant pollens will not only give you regular auto seeds, but it can also even ruin the yield rate of your grow room if you ignore them.

Another essential item you will need to make feminized seeds is colloidal silver. This chemical is an actual silver floating in a solution. Colloidal silver will force one of your female plants to produce a pollen sac instead of a bud. This makes it possible to breed two female plants to produce feminized seeds. You can easily find the chemical at your local pharmacy as a health supplement. If there is none available in your area, many online shops sell this chemical.

Production of feminized autoflowering seeds

With one of the designated female auto plants in a separate room, allow them to grow past the vegetative phase. Spray one of the plants with the colloidal silver once per day for the first part of the flowering phase. Make sure to apply the chemical to the budding site of the plant only. The chemical may burn or harm the leaves of your plant.

You will soon see your plant producing round pollen sacs instead of a bud. However, this does not mean the plant will have pollen inside it already. Continue applying the colloidal silver even after the plant produces a sac. You will know the sacs are full of pollen when it looks inflated and there are tears around the leafy covers. At this point, you can harvest the pollen sacs and store it in a sealable bag.

Make sure to discard the female plant that has gone through the colloidal silver treatment. Smoking or consuming any part of the plant that contains the chemical is not safe. Side effects of colloidal silver include the inefficiency of consumed drugs such as antibiotics and discoloration of the skin. Fortunately, seeds or plants from the treated female plant are safe.

When the sacs are dry, cut it open while inside the sealable bag to extract the pollen. You can also shake the bag to force the pollen to come out. Make sure to do this far from your main grow room where your female plants are producing cannabis buds.

With pollen at hand, apply it to the designated female plant that will produce the seeds. You can either cover the flowering site with the sealable bag that contains the pollen to pollinate the plant. Another way is to use a soft paintbrush to put the pollen directly to the flowering site. Make sure to place the female plant in a separate room to avoid pollinating the bud producing plants.

Homemade Colloidal Silver

If you have trouble finding a shop that sells colloidal silver, you can make your own at home. You will need the following:

  • 9v battery
  • 9v battery connector
  • Two pure silver pieces
  • Distilled water
  • Two alligator clips

Take note that we want the purest silver possible that is around 98 to 99 percent. The form of the silver does not matter as long as it is pure. You can make a colloidal silver solution out of silver coins or wire. In addition, you need distilled water for this to work. Filtered water will not cut it because of its impurities.

With all of the items at hand, connect the battery connector to the 9v battery and the alligator clips. Attach the clips to the silver pieces and dip them to your distilled water container. Allow the silver to lay in the water overnight. You will know the process worked when there is a residue on the silver piece.

Put aside the silver pieces after making a batch of colloidal silver. You can reuse these pieces to make more of the chemical solution after sanding their surface. In addition, make sure to place your colloidal silver in a dark area. Light exposure can deteriorate the solution.

If there are no alligator clips available, you can still make your colloidal silver with a soldering iron. Solder the electrical wire of the battery connector to the two silver pieces. This will allow electrolysis to take place, which decomposes the silver to the distilled water.

Rodelization alternative method

Another method of forcing a female plant to produce pollen is through the Rodelization process. This a natural process of stressing the female plant to the point that it will produce pollen. One way of doing this is to allow an auto female plant to flower past the point of its harvest phase. By the end of the plant’s life cycle, it will attempt to pollinate itself by growing male pollen sacs. When the sacs appear, you can collect it and apply the pollen to the seed-producing female plant as shown above.

Many breeders avoid this method because of inconsistency. The chances of a female auto plant to develop pollen sacs via its survival instinct is very slim. In addition, you are getting pollen from a plant that has a natural tendency to grow male glands. Its pollen might give you regular seeds instead of feminized ones. Another problem is the low pollen count from Rodelized female plants.

Rodelization’s appeal to breeders is its all-natural process of making feminized seeds without using any environmentally hazardous material. However, this is not a feasible and economical way of producing large amounts of feminized autoflowering seeds.

Creating unique autoflowering feminized strains

Making feminized seeds from two female auto plants of the same strain will give you stable seed. This seed will produce a bud that will have good traits from its two parents. Producing seeds from female auto plants of different strains is a different story.

The autoflowering property of the ruderalis genetics is unstable by nature. With this in mind, producing a stable strain that has the autoflowering property as well as its parent’s unique traits can be difficult. To get a strain with the flavor, aroma, and potency you want, it is a good idea to backcross the target strain to its original parent.

Making your own unique autoflowering feminized marijuana seeds requires several many experimentations. On the other hand, this is uncharted territory among the cannabis community. In exchange for your time and effort, you may come across an automatic feminized seed that no one has yet to grow. As Dan Sutton, former founder and CEO of Tantalus would say: “Build it. Whatever it is you’re dreaming of. Build it.”


By now, you know how to make your own feminized seeds out of nearly any autoflowering strains in the market. You can also do your own experimental breeding to come up with a new auto fem seed.

If you are breeding any female plants and producing buds, always make sure your main grow room is far from the pollen-producing plant. After collecting the pollen or pollinating the designated female plant, change your clothes and take a bath. Stray pollen can attach itself to your body and infect unintended female plants by accident.