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how to pick marijuana seeds

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.

Autoflowers can be started in early spring and will flower during the longest days of summer, taking advantage of high quality light to get bigger yields. Or, if you get a late start in the growing season, you can start autoflowers in May or June and harvest in the fall.

What are feminized cannabis seeds?

However, potency in autoflowering varieties has increased significantly since their initial introduction, with some breeders crossbreeding the low-THC ruderalis with other more potent varieties.

These are referred to as “bagseeds” and whether or not you can grow one will depend on where it came from.

If you don’t like the flavor, effects, or even the look of the bud, then it’s probably not worth growing.

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.

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.

Male vs. Female: Does it Matter?

For many years, people had to choose between the benefits of indica or sativa. But you can also grow hybrid plants, which blend the qualities of sativa and indica into one plant. Hybrids usually are dominant one way or the other – indica or sativa – but also produce the effects of the other kind of plant.

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.

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.

When growing cannabis, the type of seed you choose is also of great importance. There are three types of seeds to select from: regular seeds, feminized photoperiod seeds, and autoflowering seeds.

Many people these days consume cannabis not (only) to enjoy a good high, but for medicinal purposes. Some use cannabis for treating pain, others dose the herb to relieve anxiety or get to sleep. Which ailment you’re looking to soothe does play a part in which strain you should select. After all, some medicinal strains, like those rich in CBD and low in THC, will not catalyse a high at all, instead offering exclusively therapeutic benefits. Other medicinal strains contain high levels of THC in order to treat the symptoms of specific conditions, like appetite loss for example.

Of course, it’s not just genotype (genetics) that plays a part in strain selection—chemotype, or chemical makeup, is something to consider as well. THC and CBD, not to mention terpenes, ultimately play a huge role in a strain’s final effects profile.


Unlike photoperiod cannabis, autoflowering weed starts to bloom on its own after about 4 weeks. The exact time can vary, but autos always flower according to time, not light exposure. Autoflowering seeds are also feminized, so they won’t produce males, but unlike with photoperiod plants, indoor growers aren’t responsible for changing the light cycle to initiate bloom. Growers can simply leave autoflowers under 18–24 hours of light for the whole grow cycle. This makes autos a great option for new growers who have yet to learn the ropes of indoor cultivation. Moreover, autoflowers have a much quicker seedtoharvest time, maturing in about half the time as some photoperiod strains.

Regular cannabis seeds can grow into either a female or a male plant. They are not as popular as they used to be, although seasoned growers swear by them and say that they produce the best results. The disadvantage with regular seeds is that the average grower will need to swiftly identify the males and toss them out to prevent pollinating females. Then again, if you’re breeding cannabis, you will obviously require male plants.

Before buying your seeds, there are a few quick ways to narrow down your choices. First, start thinking about how and where you will grow your weed. This means, are you growing indoors or out? If so, what’s the climate like? Are you opting for hydro or soil? Do you have experience training cannabis plants, or growing them at all? All these questions can help you hone in on the perfect strain for your operation. Obviously, the amount of space you have, whether growing indoors or out, will also largely determine which specimen you select. We all would love to grow towering ganja trees of distinction, but sometimes the space simply doesn’t allow.

Recreational cannabis is even easier to describe. This is the weed you toke simply for your own pleasure. If a great high is what’s most important to you, you’ll likely want a potent indica, sativa, or hybrid that has predominantly THC, perhaps with some CBD in the mix as well. Check out the powerful Gorilla Glue, the famous Girl Scout Cookies, and the spectacular Amnesia Haze—three super-popular and potent recreational strains.