For a seed to be viable, it must be mature enough to have a completely formed genetic blueprint, and it must be strong enough to germinate and pop through its hard casing and sprout its crucial taproot.
Viable or not, there’s only one sure way to find out if a bagseed will grow. If you’re simply curious to learn and not as concerned with the overall outcome, you can plant a couple of bagseeds outside and see what happens.
Check out Johanna’s full video series on how to grow weed on Leafly’s YouTube .
You can also minimize headaches and avoid the hassle of seed germination and sexing plants by starting with clones.
Are you ready to grow?
CBD, or cannabidiol, is one of the chemical components—known collectively as cannabinoids—found in the cannabis plant. Over the years, humans have selected plants for high-THC content, making cannabis with high levels of CBD rare. The genetic pathways through which THC is synthesized by the plant are different than those for CBD production.
One way to avoid sexing plants is to buy feminized seeds (more below), which ensures every seed you plant will be a bud-producing female.
A lot of classic weed strains that have been around for a while come in feminized form. Some popular fem seeds are:
Is the seed viable?
Take two of the paper towels and place them on a plate. Then, place the marijuana seeds at least an inch apart from each other and cover them with the remaining two water-soaked paper towels.
Within a week or so you should see a seedling begin to grow from the soil.
However, I have been surprised to find some very flimsy or pale seeds sprout and produce amazing plants (we aren’t breeding cannabis for hard seeds after all). When in doubt, I highly recommend doing the true test to see if the seed is viable – try to germinate the seed and see if it sprouts !
These seeds have germinated
The biggest problem is that seeds often don’t “breed true” to the buds that they came from. The resulting buds may end up nothing like the buds you found them in.
Seedy buds are the result of pollination. What does that mean? Cannabis buds are flowers. Like other flowers, they make seeds when pollinated. Cannabis buds get pollinated when they come into contact with cannabis pollen while the buds are forming.
Are “found” seeds good to grow?
Seeds in your buds aren’t good or bad. They are simply the result of pollination while the buds were growing. A few seeds here and there won’t make much difference in potency, though potency may be lower if the buds are very seedy.
Sometimes you don’t see the seeds until they fall out of your buds
Pollen typically comes from the pollen sacs of a male cannabis plant. Male plants spray pollen everywhere when their flowers are mature. Sometimes female cannabis plants will produce pollen (known as herming) due to genetics or stress. Any source of pollen, whether the plant is male or female, can pollinate buds in the vicinity and cause seedy buds.
Does it mean the weed is bad?
I’ve seen some growers get impressive results with bagseed (seeds you find), but results may be hit or miss. Plants can grow in odd ways and the yields or quality may not be as expected.
That is why many growers either stick to clones (which are exactly the same as the “mother” plant) or purchase seeds of a stabilized strain from a trustworthy breeder. This ensures each of the plants will grow the way you expect, and buds more consistently have the smell, yield and potency you expect.