Feminized cannabis seeds have been bred with the sole intention to produce female cannabis plants. For any home growers growing with the intention to produce bud, purchasing feminized cannabis seeds is a smart decision because it takes away the worry of male cannabis plants damaging your crop. At MSC we have worked hard to produce the highest quality feminized seeds on the market with a 99.9% guarantee that they will produce a female plant. We stock a wide range of feminized seeds from high THC seeds to low THC medical strains so there is a strain for everyone.

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What are feminized seeds?

Since the early 90’s when feminized seeds were first introduced the stability and quality of the seeds has come on a long way. Our breeding team now produces over 70 different varieties of feminized cannabis seeds so there is a strain to suit everyone.

Prior to the introduction of feminized marijuana seeds, growers would have to keep a close eye on their grow and pull out any male plants to prevent pollination.

Feminized seeds are cannabis seeds that have had the male chromosome taken out so that they are only able to produce female cannabis plants.

They are made through a process whereby plants are sprayed with colloidal silver. The silver ions in the spray induce feminized pollen by inhibiting the ethylene production which is required to produce female flowers.

Feminized vs regular seeds – What is the difference?

Regular cannabis seeds produce an average ratio of 50:50 male to female plants. This can cause problems for anyone growing cannabis with the sole intention of producing lots of smokable bud.

If you were to grow ten regular seeds, it is likely that you would produce around five male plants and five female plants. Female plants produce flowers or what we call bud, whereas male plants produce pollen that forms in small sacks.

If the intention was to grow female plants you would need to separate the male and female plants, typically culling the male plants before they are given the chance to pollinate the rest of your crop. Once pollinated any bud would then start to produce seeds inside it, effectively ruining the entire crop by making the weed unusable.

Regular seeds on the other hand are great for anyone looking to breed or with the intention to produce their own cannabis strains.

Feminized seeds vs Autoflowering seeds

Autoflowers, also referred to as ruderalis, are strains that are native to regions of Asia, Siberia, Eastern Europe and Russia. Typically ruderalis grows in colder mountainous regions where there is less daylight. Because of this, the plant has adapted to flower regardless of the number of hours in the day, hence why it adopted the name ‘autoflower’.

What is a photoperiod strain? Photoperiods are cannabis strains that have two main phases of their life cycle, the vegetative stage and the flowering stage. Photoperiod strains differ from autoflowers in that they do require a change in their light cycle to trigger the flowering stage to begin. This is why if you are cultivating photoperiods two different light cycles are required, one of 18/6 during the vegetative stage and one of 12/12 during the flowering stage.

Although this may seem confusing most autoflowers are also feminized as well and only produce female plants. However autoflowers are categorised as autoflowers simply to separate them from ordinary photoperiod strains.

Buy feminized seeds in the USA and worldwide

At Marijuana Seed City we stock the best feminized seeds grown with love and care in our facilities in the Netherlands. All of our stock is fresh and we only breed with the highest quality produce to ensure that we have the best genetics so for your next grow why not buy feminized seeds from us?

At MSC we ship the best feminized seeds worldwide including the US, all orders are shipped with the utmost discretion using industry standard stealth methods to ensure you get your seeds safe and on time. Our customer service team is on hand to deal with any of your queries, so you can be sure that you are in safe hands.

5 best rated feminized marijuana seeds

Big Bud seeds 

Yield – Over 600 g/sm THC 15 – 17% Sativa/Indica – 20 / 80

Big Bud is world renowned for its huge yields and if you are growing with the intention of producing as much bud as possible you can’t go wrong with this strain. By growing our Big Bud feminized seeds you will be able to max out yields and bud production without worrying that a stray male will ruin your crop.

Gorilla Glue seeds

Yield – 500 – 600 g/sm THC 25% Sativa/Indica – 50 / 50

Not quite as high yielding as the likes of Big Bud, Gorilla Glue is the strain for anyone chasing a huge hit of THC. Lab tested at 32% THC Gorilla Glue feminized cannot be beaten on potency.

Blue Dream seeds

Yield – 400 – 500 g/sm THC 18 – 21% Sativa/Indica – 60 / 40

Blue Dream is a sativa dominant hybrid cross of Blueberry and Haze and is known to be one of the easiest strains to grow for beginners.

Girl Scout Cookies seeds

Yield – 400 – 500 g/sm THC 25% Sativa/Indica – 40 / 60

A fruity cross of Durban Poison and OG Kush GSC are some of the best feminized seeds you can buy. Not only will you grow great tasting weed but it is also known for its potency having been consistently tested under lab conditions at 25% + THC.

Runtz seeds

Yield – 400 – 500 g/sm THC 22 – 25% Sativa/Indica – 50 / 50

A highly potent cross of two of the most popular cannabis strains, Zkittlez and Gelato. Runtz is an all around crowd pleaser with yields of up to 500g/m2 and THC levels of 25% making this without a doubt one of the best feminized seeds on the market.

How to grow feminized seeds

Growing cannabis isn't rocket science, however there are a few basic tips that you can implement to your grows that will make a world of difference to the outcome.

Buy feminized seeds that are high quality

The first and most important rule is to buy feminized cannabis seeds from a reputable source with good genetics such as Marijuana Seed City. Whatever your preference, we have a strain for you, why not browse our highest yielding strains guide and our highest THC strains guide to help you decide.

Start simple with your first grow

Try not to over complicate your setup by using growing techniques such as hydroponics on your first grow. Learn to grow in soil before moving onto other techniques. Growing in soil is by far the most simple and straightforward way of growing cannabis seeds. You can even use a living soil that already contains nutrients so that you don't have to add anything to your plants and can just focus on the basics.

Use tried and tested germination methods

Buying good quality feminized cannabis seeds isn't cheap so read up on the best methods of germinating cannabis seeds to give yourself the best start. Use the most basic tried and tested methods such as germinating in between paper towels or a glass of water before planting your seeds. This gives you the best chance of completing your first grow successfully.

Avoid silly mistakes

Avoid common mistakes when you are growing marijuana and not only will your grow produce much better quality weed and yields, it will also be less stressful. Avoid over or underwatering your plants by using smart pots. These clever pots are made with a permeable mesh-like material that allow the roots to breathe and also any excess water to drain which makes it impossible to over water.

Keep your plants happy

Happy plants make good weed, so try your best to replicate the plant's natural environment as much as possible. To do this you need to:

make sure the temperature and humidity levels are consistently in the perfect range for cannabis plants. Vegetative stage 68 to 77 °F and flowering stage 65 to 85 °F.