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Monitoring pH is important since cannabis can only uptake nutrients within a relatively small window. If the pH level is too low or too high, your plants will get sick.

Good soil for cannabis has a light, airy structure, preferably with some perlite mixed in. This ensures adequate drainage and allows roots to grow unhindered. Cannabis won’t do well in soil that is too dense.

If the pot is too small, the growth of your roots, and therefore the growth of your entire plant, will be restricted. If the pot is too big, this increases the likelihood of overwatering, fungus, and root rot.

8. NOT HAVING PROPER VENTILATION

Are you growing cannabis for the first time? Or maybe you’re more experienced but keep encountering growing issues? Let us help you! Before you put seeds in the soil, check out the points below. Once you learn the 11 biggest mistakes you can make when growing cannabis, you’ll be more than ready to grow healthy and successful plants.

As an alternative to plastic pots, you can also use fabric pots (smart pots) or air pots. If you want to learn more about the different pots used to grow cannabis, check our article on the subject.

This is usually done when growing hydroponically. Soak the rockwool blocks in low-pH water and place them in a plastic tray with a lid. Place your seeds in the hole of each rockwool block. Seeds should germinate in a few days. Place the rockwool blocks with your seedlings in their soil pots when roots start to come out the bottom.

Fill a glass halfway with lukewarm (22°C) water and drop in your seeds. After about 3–5 days, the seeds should have sprouted, and you can now transfer them (carefully!) into your prepared soil pots.

Feminized cannabis seeds will produce only female plants for getting buds, so there is no need to remove males or worry about female plants getting pollinated. Feminized seeds are produced by causing the monoecious condition in a female cannabis plant—the resulting seeds are nearly identical to the self-pollinated female parent, as only one set of genes is present.

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.

What are autoflowering cannabis seeds?

Also, autoflower plants are small—perfect for closet grows or any small grow, or growing outdoors where you don’t want your neighbors to see what you’re up to.

For the typical homegrower, it may be easier to obtain cannabis seeds rather than clones. Growing from seed can produce a stronger plant with more solid genetics.

Pre-flowers can initially be extremely small and hard to identify with the naked eye, but you can use a magnifying glass to get a better look.