What Are Feminized Cannabis Seeds?
This article is sponsored by Kannabia Seed Company, an award-winning cannabis seed company headquartered in Spain. Using only the highest quality genetics on the market, their grower-oriented approach has made cannabis cultivation simple and satisfying for growers of all skill levels for years.
Anyone who’s ever savored a joint owes their enjoyment to the fruits of the cannabis plant, but moreover, to the female of the species. That’s because only female cannabis plants produce the cannabinoid-rich flowers that deliver the flavors and effects consumers look for.
This is why many North American growers are turning to feminized seeds—cannabis seeds that carry only female genetics, and can be relied on to produce only female plants. By creatively applying technologies to seed feminization, modern breeders like Kannabia can ensure female genetics in seeds with a nearly 100% success rate.
Male vs. Female Cannabis Plants
A bud of Diesel Glue grown from Kannabia’s feminized seeds. (Courtesy of Kannabia)
Cannabis plants that are pollinated naturally or with traditional breeding techniques can produce both male or female seeds. These are known as regular seeds and, as in most species, they occur with about an even split between the two sexes. That means cannabis cultivators starting with standard seeds have about a 50% chance of yielding a female plant from each one.
As a result, growing cannabis from regular seeds isn’t very efficient—it’s akin to running a bakery that has to throw out every second loaf of bread. Growers working from regular seeds have to account for the fact that roughly half of their plants could be males. While those plants are of some value to breeders, folks growing for flower won’t find much to like in them, and too many male plants can spoil a grow.
Traditionally, the solution to this has been an inelegant one, with many cultivators planting at least twice as many seeds as they hope to harvest with the assumption that about half of them will be useless. However big a harvest you’re looking for, using regular seeds means you’ll have to plant twice that many seeds.
Why Grow From Feminized Cannabis Seeds?
Cultivators depend on feminized seeds for efficient growing cycles. (Courtesy of Mr. Sticky Farm)
There are numerous advantages for growers who start their garden using feminized seeds. By removing the guesswork of germinating regular seeds, feminized seeds streamline the growing process, saving space and time.
That efficiency is key for medical cannabis patients and hobby growers. Since most cannabis regulations limit plant counts, growers cultivating a small crop of cannabis for personal use want to ensure they’re getting the most out of their grow.
Male plants don’t just take up space in a garden, either. They can also sap time and resources from growers. When male and female plants are both present, growers need to cultivate both until their sexes are clear. While some strains will show early signs of their sex before flowering begins, most cannabis plants don’t begin to express their sex until they start to mature past the vegetative stage.
This change occurs when the photoperiod, or amount of light and dark that the plant receives, changes to 12 hours of light and 12 hours of dark. In outdoor gardens this change can happen naturally with the seasons or, in more controlled environments like indoor gardens, by human intervention using light timers.
Once those plants are old enough, growers have to go to the trouble of actually determining their sex, monitoring each individual plant to ensure any males are removed before they can pollinate their female counterparts.
Growers can avoid spending weeks nurturing plants with only a 50% chance of expressing as female and maximize the space and plant count in their gardens by using feminized seeds from suppliers like Kannabia. These specially-treated seeds increase the probability of producing a female plant to 99%.
How Are Cannabis Seeds Feminized?
Treating cannabis seeds with a silver thiosulphate solution can ensure the resulting plants are females. (Courtesy of Kannabia)
There are a few techniques that can produce reliably feminized seeds. One classic method is stressing out a healthy female plant by interrupting its light cycle during flowering. While that works to an extent, the more common and controlled method is to spray down female plants with a collodial silver or silver thiosulphate solution. This method makes it possible to control the sex of a plant without any genetic tinkering or modification.
Both substances are a blend of water and fine silver particles, and they work in largely the same fashion. The silver solution impedes the production of ethylene, a hormone involved in flowering. The result is a female plant, but one that produces male flowers with pollen sacs. Since those pollen sacs develop on a plant with only female genetics, female genetics are all they carry. When those flowers pollinate another female plant (one untreated by silver solutions), the resulting seeds are nearly certain to be female.
Treating plants with a silver thiosulphate solution results in seeds that will produce feminized plants nearly 100% of the time, and Kannabia’s breeders have found this method to be the most effective way to maintain the stability of the seeds and future feminized plants.
Feminized Varieties to Try in Your Garden
Using feminized seeds can make it easier for home growers to cultivate strains like Russian Doll. (Courtesy of Kannabia)
Growing cannabis in your home is legal in an increasing number of states and provinces throughout the United States and Canada. To make starting a home garden easy, growers can start with feminized seeds for many popular strains from providers like Kannabia.
“In our search to find new genetics, Kannabia paired us with their feminized Russian Doll seeds,” say growers at Canada’s BlueSky Organics. “Every seed germinated, and now that we are in the late vegetative stage, these plants have an extremely hardy trunk preparing themselves for some massive buds.”
If you have more questions about strains or seeds, keep digging through Leafly’s resources. And to learn more about the variety of feminized seeds available to you, visit Kannabia’s website to see its full line of feminized genetics, including strains like Diesel Glue and the award-winning Mataro Blue.
Promotions are offered solely by Kannabia Seed Company. Terms and conditions may apply—contact Kannabia for full details.
Feminized marijuana seeds can streamline the growing process and ensure that cannabis cultivators get the most out of their hard work. Read all about the process here.
Феминизированные семена каннабиса генетически модифицированы для получения только женских растений. Как правило, из семени каннабиса вырастает мужское или женское растение, так как весь этот процес определяется X- и Y-хромосомами. Растение с двумя X-хромосомами будет женским на 99.99%, в то время как растение с X- и Y-хромосомами почти всегда будет мужским.Женские растения компании Royal Queen Seeds производят мужские цветки, благодаря обработке гиббереллиновой кислотой, которая превращает женские растения в гермафродиты и позволяет получать семена только с женскими хромосомами.
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What Does Feminized Cannabis Seeds Mean?
Feminized cannabis seeds are 99.9% guaranteed to produce buds, making them perfect for indoor and outdoor growers. All of our feminized seeds are photoperiod, meaning you’ll need to strike the right balance of light and darkness to make them flower.
To quickly and easily tell if cannabis seeds are feminized, check the datasheet on the relevant product page. The datasheet contains key attributes and will help you pick the perfect cannabis seeds.
What Are the Advantages of Feminized Cannabis Seeds?
Whether you’re entirely new to growing cannabis or an experienced hand, our feminized cannabis seeds offer several distinct benefits:
- 99.9% guaranteed to produce bud-bearing female plants
- Straightforward to grow—no need to check for male plants
- Suitable for indoor and outdoor growing
- Reliable genetics
- Maximum potency and aroma
- Larger yields compared to autoflowering and regular cannabis seeds
Why Choose Feminized Cannabis Seeds?
Growers and cannabis users of all stripes love feminized cannabis seeds for several reasons:
- Growers favour larger, more robust plants that respond well to training. Feminized seeds give them time to learn how to become a better grower.
- Recreational users find the flavour, aroma, and high intensely satisfying. With a vast selection to choose from, it’s easy to find a feminized strain you’ll adore.
- For holistic users, feminized cannabis seeds offer diverse cannabinoid profiles rich in THC and/or CBD.
Differences Between Indica and Sativa Feminized Cannabis Seeds
All of our feminized cannabis seeds fall under two subspecies—indica and sativa. Yet, these categories do little to describe the effects of individual strains—that’s more to do with terpene profiles—so if you want to try strains with different effects, we recommend reading the product description and datasheet to see which is suitable.
The subspecies does, however, influence characteristics such as leaf shape, plant size, and total flowering time:
- Indicas typically grow shorter, with a bushy structure and broader leaves. They also tend to flower in less time than sativas, making them ideal for colder, rainier climates.
- Sativas grow tall, with longer branches and thinner leaves, and they often take longer to flower. Sativas love the sun and thrive in warm climates.
Most cannabis seeds contain a mix of indica and sativa genetics (technically making them hybrids) and display characteristics of both as a result. The datasheet will tell you the exact ratio of genetics (for example: 50% sativa, 50% indica).
How To Grow Feminized Cannabis Seeds
You can easily grow feminized cannabis seeds indoors (in a tent or grow room) or outdoors (in a greenhouse or garden).
How To Grow Feminized Cannabis Seeds Indoors
Start by germinating your seeds. Place them between moist paper towels or use an Easy Start tray to boost germination rate.
Once seedlings develop a few nodes, transplant them into their final pots and place them into your grow tent. You’ll need to manage light, humidity, and water to ensure successful growth and flowering. To switch the phase of your plants’ development, you’ll have to adjust light and dark hours accordingly:
- Seedling: 20 hours of light, 4 hours of darkness (20/4)
- Vegetative phase: 18/6
- Flowering phase: 12/12
Photoperiod cannabis plants react to light as they would in nature, vegetating during the spring and summer months, before blooming as the daylight hours fade towards autumn. As an indoor grower, your job is to replicate those conditions.
The average time from seed to harvest is around 3.5 months, but this varies according to the flowering time of your strain, and when you choose to make the switch from veg to bloom.
How To Grow Feminized Cannabis Seeds Outdoors
After germinating your seeds, keep your seedlings on a warm windowsill or in a greenhouse. When they outgrow their original container, transplant them into their final pot or a spacious garden bed. Most outdoor growers plant seeds in early spring, once the threat of frost is gone.
Your plants will remain in the vegetative phase until the hours of sunlight decrease toward the end of summer, prompting flowering. Outdoor cannabis plants are usually ready to harvest between late September and early November.
What’s the Ideal Temperature and Humidity for a Grow Tent?
Cannabis plants flourish in moderate temperatures (approximately 21°C), although most strains can handle small fluctuations. Be cautious of extreme changes in temperature, as this may lead to a failed harvest.
The optimal relative humidity (RH) varies according to the plant’s stage of development. You’ll need to adjust humidity accordingly to achieve the best results:
- Seedling: 65–70%
- Vegetative: 50–70%
- Flowering: 40–50%
What Is the Best Soil for Feminized Cannabis Seeds?
Several types of store-bought soil are perfectly suitable for cannabis growing. However, all soils should meet the following criteria:
Do Feminized Cannabis Seeds Need Nutrients?
All cannabis plants need three macronutrients to thrive:
- Nitrogen (N)
- Phosphorus (P)
- Potassium (K)
Plants will need different ratios of these nutrients during the vegetative and flowering phases, alongside adjustments in micronutrients like calcium, iron, magnesium, copper, and several others.
Pre-made cannabis fertilisers offer an easy solution with specific formulas for each stage of growth. RQS Easy Boost supplies all of the foundational nutrients needed throughout the growing cycle. Easy Grow adds additional vegetative nutrients, and Easy Bloom covers all of the necessary bases for optimal flowering.
How To Water Feminized Cannabis Seeds
Cannabis plants need regular watering to grow and flower successfully. The usual approach is to water well every 1–3 days. However, a common mistake amongst novices is overwatering, so keep an eye out for signs of overwatering in leaves, including:
- Curling downwards
- Slight yellowing
To avoid root rot and harming plants, ensure the soil is dry before watering. You can quickly check the dryness by inserting your finger knuckle-deep into the substrate. If the soil still feels moist, wait another day before checking again. If in doubt, water well, but not too often!
How To Choose the Best Feminized Cannabis Seeds From the RQS Catalogue?
With dozens of high-quality feminized cannabis seeds to choose from, how do you know which one is right for you? At RQS, we have several tools to make your browsing experience as easy as possible.
Use the filter located at the top left of the page to select your preferences, including height, yield, THC and CBD levels, and flowering times. Alternatively, use the “sort by” feature located at the top right to explore individual categories.
If you’re new to cannabis growing, try the RQS Feminized Starter Kit, a complete package that comes with 3 cannabis seeds and everything else you need for successful germination. Easy!
Want to experiment with different feminized strains? Try out our mixed packs of 3 and 5 seeds! You’ll get to experience all of the distinct attributes of some of the finest feminized strains out there.
Cannabis seeds can be freely distributed within the EU under the principle of mutual recognition. However, it is your own responsibility to research your local laws and regulations before ordering.
Феминизированные семена каннабиса генетически модифицированы для получения только женских растений. Как правило, из семени каннабиса вырастает мужское или женское растение