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grow weed from found seed

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Seedlings are very sensitive and do not take kindly to growing mistakes like improper humidity and moisture levels. Both could spell the premature end for your seedlings.

By using pH up and pH down products, you can adjust your water for the optimal pH level. Make sure you have a pH meter or pH measuring drops!

Even if every stage up to harvest has gone splendidly, the final (and most maddening) mistake you can make is harvesting too early or too late. You don’t want to make the chop before your buds reach peak potency, but you also don’t want to leave them hanging, so to speak.


Your planting pots need to provide good drainage. Usually, there will already be holes in the bottom. If there are no holes, as can happen when you buy standard plastic pots, you will have to make them yourself. Make sure there are at least 5 openings, each about the size of a penny. As long as soil doesn’t just fall through the bottom, you’re good.

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.

Use some type of absorbent paper (kitchen paper, coffee filter) and place a couple sheets on a flat surface such as a plate. Put your seeds on the paper, spaced a little apart, and cover with a couple more sheets over the top. Moisten the paper and make sure to keep it damp so it doesn’t dry out. After a few days, when the seeds have sprouted 2–3mm taproots, transfer them to their seedling pots.

If you really want to reuse your old soil, you need to amend it with fresh nutrients. Before that, you need to make sure that your soil is free of contaminants.

You want to take more cuttings from each plant than you think you will need, because not all will root successfully.

If you have a rooting gel, you can dip the ends of your cuttings in some gel to greatly increase the chance of successful rooting (and also to speed up the formation of roots). Using a gel is not necessary, though.

This is where you find out if you’ve wasted your time and effort, or if you’ve actually got a usable female plant on your hands.

What Next? Cloning Your Most Successful Plant

In that case, the simpler your grow setup, the more sense it makes to use bag seed.

You may fail to grow a successful bud-producing plant on your first attempt or two (or three), but eventually you will get a beautiful female who yields wonderful buds. When that happens, you want to make sure you build on that success.

While it is true that genetics plays a big role, a lot of sub par weed is bad not because of bad genes, but because of bad growers.

If they are growing weed with seeds in it, they are obviously not keeping male plants or hermaphrodites always from the female plants. If they can’t be bothered to do that, chances are they are providing their plants less than ideal conditions in every other aspect of the grow as well.