The cannabis plant can grow in nearly any environment and averages one to two inches of growth per day and up to 18 feet.


AddThis Social Bookmark Button



Making Feminized Marijuana Seeds is Easy!

How to Make Your Own Feminized Cannabis Seeds

 There are two main methods to create your own feminized cannabis seeds: LEARN A METHOD

 Using Rodelization


 The Colloidal Silver Spray Method



(How To Breed 2 Female Plants Together For Seeds)

by Nebula Haze

Ever wondered how those marijuana seed banks make feminized seeds? When you "feminize" a seed, what that means is you're ensuring that the resulting seed will produce a female plant. Most growers only want to grow female cannabis plants, since the females plants are the only ones which grow buds/flowers. 

It's actually pretty easy to feminize your own seeds, and you can easily make your own feminized marijuana seeds at home using the following technique.

"Feminized" seeds means all-female seeds, or marijuana seeds where 99.9% of the resulting plants will end up being female and grow the prized marijuana buds. When you have all-female plants, you won't have to throw any plants away because they end up being boys (male cannabis plants don't produce buds, only pollen).

also see 10 things that can destroy your cannabis crop, and securing your cannabis crop.

MORE - In Depth Cannabis Growing Tips





Using Rodelization

 Source High Times

by Soma

Creating feminized cannabis seeds is an art. Just like art, there are a few different methods of application. I have written about some of my different methods of making seeds in previous HIGH TIMES articles. I have used gibberellic acid, pH stress, light stress, and fertilizer stress to force my female plants to make seeds. All of these methods are harsh on the plants, and some, like the gibberellic acid, are not organic. In my search for cleaner, more earth-friendly ways of working with the cannabis plant, I have found a new way to make feminized seeds.
Feminized seeds occur as a result of stress, rather than genetics. All cannabis plants can and will make male flowers under stress. Certain strains like a higher pH, some a lower one. Some like a lot of food, some like much less. There is quite a lot of variety in marijuana genetics, and you can’t treat every plant the same way.

It takes many harvests before you really get to know a particular strain. Just like getting to know human friends, it takes time. I have grown the same strains for close to a decade, and am truly getting to know every nuance the different plants exhibit. I can recognize them from a distance. I must say that I get a lot of help from my friends, both in making seeds and in learning new and better ways of working with this sacred plant.

I named this new method "Rodelization," after a friend who helped me realize and make use of this way of creating female seeds. After growing crop after crop of the same plants in the same conditions, I noticed that if I flowered the plants 10-14 days longer than usual, they would develop male "bananas." A male banana is a very slight male flower on a female marijuana plant that is formed because of stress. Usually they do not let out any pollen early enough to make seeds, but they sometimes do. They are a built-in safety factor so that in case of severe conditions, the plant can make sure the species is furthered.

To me, a male banana is quite a beautiful thing. It has the potential of making all female seeds. Many growers out there have male-banana phobia. They see one and have heart palpitations, they want to cut down the entire crop, or at the very least take tweezers and pluck the little yellow emergency devices out. I call them "emergency devices" because they emerge at times of stress.

In the Rodelization method, the male banana is very valuable. After growing your female plants 10-14 days longer than usual, hang them up to dry, then carefully take them off the drying lines and inspect for bananas. Each and every banana should be removed, and placed in a small bag labeled very accurately. These sealed bags can be placed in the fridge for one or two months and still remain potent.

For the next phase, you need to have a separate crop that’s already 2 1/2 weeks into flowering. Take your sealed bags of pollen out of the fridge, and proceed to impregnate your new crop of females. To do this, you must first match the female plant and the pollen from the same strain in the previous crop. Shut all the fans in the growroom down. Then take a very fine paintbrush, dip it in the bag of pollen, and paint it on the female flower. Do this to each different strain you have growing together. I have done it with up to 10 different kinds in the same room with great success.

I use the lower flowers to make seeds, leaving the top colas seedless for smoking. This method takes time (two crops), but is completely organic, and lets you have great-quality smoke at the same time you make your female seeds. If you’re one of those growers who’s never grown seeds for fear of not having something good to smoke, you will love this method.

You can also use this pollen to make new female crosses by cross-pollinating. The older females with the male bananas can be brought into the room with the younger, unpollinated females after they are three weeks into flowering. Turn all of the circulation fans on high, and the little bits of pollen will proceed to make it around the room. Do this for several days. Six to seven weeks later, you will have ripe 100% feminized seeds; not nearly as many as a male plant would make, but enough to start over somewhere else with the same genetics.




The colloidal silver spray method

For whatever reason, when colloidal silver solution is sprayed regularly on a  female cannabis plants during the early flowering stage, she will grow male "balls" (which are full of female pollen) instead of growing buds.


This allows the grower to collect pollen from a female cannabis plant. You can use this all-female pollen to pollinate another female plant. With two female plants as parents, ALL the seeds will end up being female.

That is why colloidal silver allows can be used create female x female cannabis crosses and produce your own feminized seeds.

Rodelization takes advantage of the fact that a female plant will try to pollinate herself as a last resort when she doesn't get pollinated and is nearing the end of her lifecycle. That is why sometimes older or stressed female plants grow a few male "balls" as a last-ditch attempt to self-pollinate. When successful, she will grow a few seeds.

These self-pollinated seeds will have gotten both sets of genes from the same female plant, so both parents will be female, and all resulting seeds with be female.

Making Feminized Marijuana Seeds at Home is Easy!
(How To Breed 2 Female Plants Together For Seeds)

by Nebula Haze

How to Make Feminized Marijuana Seeds

The main idea is you get two female cannabis plants to make seeds with each other. With two female parents, all the resulting seeds end up being female, too.

The secret is a special substance known as "colloidal silver" which simply means water that has silver particles suspended in it. You can make colloidal silver at home (instructions below), with a colloidal silver generator, or you can purchase colloidal silver at health stores and online (some people drink it).

For some reason, when a female marijuana plant is exposed to colloidal silver during the early flowering stages, all the exposed parts which would normally grow THC-laden buds instead will grow male "balls" or pollen sacs. It "masculizes" the treated part of the plant.

Science: The concentration of silver ions in the water actually act as an ethylene inhibitor / antagonist on the plant, which forces the plant to create male pollen sacs instead of female buds. 

The pollen produced from these special balls can be used to pollinate a female plant. Except since both pollen and bud come from female plants, you have two female cannabis parents and end up creating feminized cannabis seeds.

Where do I get colloidal silver? Instructions and information below.

Where to get Colloidal Silver:

1. Buy Ready-To-Use Colloidal Silver: You can actually buy colloidal silver which has already been prepared and is ready for use. If you're purchasing colloidal silver, try to find a solution that has at least 30 PPM (parts per million) of silver. However, buying Colloidal Silver that is already prepared can get expensive if you're making lots of seeds.

 2. Buy A Colloidal Silver Generator Kit: A cheaper long-term option is to buy a colloidal silver generator, so you can easily make your own endless supply of colloidal silver.This Colloidal Generator kit comes with everything you need including silver. All you need to do is provide the water and a container.

 3. You can make your own colloidal silver generator at home. The following diagram should illustrate what you need to do.


Let me break it down for you: 

Collect Pollen from Female Cannabis Plant 

Medical Marijuana $40 Billion Industry

Step 1: You change one female marijuana plant to the flowering stage by changing the light schedule to 12-12 (12 hours light, 12 hours total darkness each day).

Step 2: Thoroughly mist the parts of the female cannabis plant that you'd like to grow male pollen sacs with colloidal silver solution every day. Keep misting with colloidal silver daily until she starts growing male "balls" full of pollen, usually after 10-14 days. 

You don't have to keep misting with colloidal silver once the balls have formed. You can choose to treat just part of the plant, and only the parts that are misted with colloidal silver will change. 

However, it is not safe to use any buds that have come into contact with colloidal silver so be very careful not to get in on any part of the plant you plan on directly smoking or consuming.

Step 3: Wait until the pollen sacs are ready. Let them swell like a big empty balloon. You will be able to tell when they are ready because they look about to burst and the leaf section protecting the pollen starts to crack.

Step 4: At this point, simply remove the pollen sacs carefully from the plant and place them in a cool dry place for a week to let them dry.

Step 5: Place the sacs in a small ziploc bag. The pollen will come out if you shake them a bit, or you can cut open the sacs manually to get to the pollen inside. 

how to grow marijuana indoors

How to Store Pollen: Moisture is your main enemy when storing pollen. That's why I double the mass of the pollen collected by adding regular cooking flour. This will absorb any moisture during storage plus as an added bonus, it will make application easier when you get to pollinating. I triple-bag the pollen-flour mixture, and stick it in the freezer with a good nametag so I know where the pollen came from. With this method,marijuana pollen can be stored for a year or longer. 

Use the Feminized Pollen to Pollinate Another Female

Step 6: When your chosen mother is 2-3 weeks into the flowering stage, take a paintbrush and 'paint' your feminized pollen on bud sites of the branches you want to pollinate. Only the buds that come in contact with pollen will start to grow seeds. You can choose to pollinate all of your buds, but most growers will only choose to pollinate a few, so they can harvest and smoke the rest. (Seed-laden buds focus all their energy on making seeds, not on growing buds)

Step 7: It usually takes about 6 weeks for your feminized seeds to fully develop. Some plants are literally dying right as the seeds become ready, so to get the most viable seeds, you need to try to keep the plant alive until the seeds actually start dropping. The seeds can be used right away, or stored in a cool, dry place for several years. Don't forget to label them with the date!

If you haven't started growing marijuana yet, today is the day!'s one-of-a-kind 3-page Stealth Growers Cheat Sheet will teach you everything you need to know to discretely start growing a few pounds of marijuana a year, out of a spare closet.

Click here to learn how to grow weed and download your cheat sheet:

About Nebula Haze

In response to the need for more tutorials aimed at new growers, Nebula co-founded in 2010 with fellow grower Sirius Fourside. Since then, Nebula has published dozens of growing articles in print and online, and continues to dedicate herself to serving the medical marijuana growing community.

Wanna "steal" this article?

Here at, we are dedicated to getting this information into as many hands as possible. You are welcome to republish this entire article as long as you do not edit, remove or or otherwise change any part of it without permission.

Please don't hesitate to Contact with any questions.

Happy growing!