It’s important to only conduct this test if you are planning to germinate the seeds immediately afterwards. The viable seeds that sunk to the bottom of the glass will have taken in water, crossing the membrane of the seed and signalling that it’s time to come to life—activating germination.
We hear this question all the time from clients and beginner growers, and the answer is a resounding no. There is simply no way to tell the sex of a cannabis seed just by looking at it.
This is absolutely not true. As we explained earlier, cannabis seeds naturally look different, and no single physical trait of a seed can tell you whether that seed contains the genetics for a male or female plant. The only way to tell a female cannabis plant from a male is by looking at its flowers when it begins to sex. Don’t be fooled into throwing out perfectly healthy seeds just because a popular internet chart told you so.
Conducting The Float Test
A solid way to obtain great seeds is to find a reputable seed bank. These companies pride themselves of their breeding skills and make sure that their customers receive exactly what has been advertised. They have reputations to cater to, so delivering anything less would only harm their image.
A quick web search will bring up all kinds of myths about how to tell female cannabis seeds from males. One of the most popular ones comes from a chart showing 5 different seeds that claims that the female seeds have “a perfectly round volcano-like depression at the bottom (from where the seed was attached to the plant).”
The color and feel of a seed, on the other hand, can tell you a little more about its maturity and, potential to germinate or grow into a healthy seedling.
The one true method to test the genetic potential of a seed is to simply put it in the soil. It won’t take too long to see the results. This option is best for the hobby home grower who has time and space to spare for a risky project. Growers cultivating cannabis for commercial use likely don’t have the excess time to invest.
Healthy marijuana seeds are dark brown, black, or some combination of both. We’d recommend you don’t use green seeds. Green seeds usually aren’t yet mature enough to sprout. Both bigger and smaller seeds will work. Indica seeds tend to be bigger-sized than sativa seeds. Another way indica and sativa seeds differ is in their patterns. Seeds that are brown and black are most likely indica, while the seeds that are a single color are generally sativa.
Seeds can be male or female, but most people only want to grow female seeds. Why? Because female plants are the plants that produce buds. Most seed companies sell “regulars,” which contain male and female seeds. However, they also offer only female seeds, referred to as feminized seeds. There is a big price difference between the two, but its worth it to spend the extra money to make sure that you are working with feminized seeds so that you do not waste your resources growing male plants that don’t produce the results you want.
Don’t get overwhelmed. There are a lot of options when it comes how to choose cannabis seeds! The best way to learn is just to get started.
Choose Your Benefits
Seeds are only produced by female cannabis plants after a male plant pollinates them. To grow your own seeds you will need the female plants that produce the seeds, as well as a male plant to fertilize the female plants. It’s as simple as placing the male plant near the female plant you want to fertilize. Seeds will appear in about 4-6 weeks. This can be a complicated process, with a lot of uncertainty, so many people choose to purchase feminized seeds instead.
If you choose to purchase seeds, start with a cheaper strain. Expensive doesn’t always mean better. Some of the old faithful strains are very potent. More complicated, newer, expensive hybrid strains can flop more easily. You don’t want to have spent too much money on seeds for your first plants. Choose a strain that people have been growing abundantly for many years so your first grow cycle is as problem-free as possible.
Cannabis sativa plants will grow tall and thin. They take longer to mature than indica plants. Sativa plants tend to have bigger yields than indica plants. Indica plants are shorter and more bush-shaped and tend to produce fewer buds than sativa plants.
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