Eli5 Why are weeds so hard to kill while desirable plants so hard to keep alive?

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Weeds grow, well, like weeds, out of the cracks of the pavement with nothing but municipal runoff to keep them alive. Meanwhile I have to work tirelessly to keep my tomato and pepper plants happy and fruitful. Why do weeds dominate a garden?

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Anonymous 0 Comments

There’s no such thing as a weed in nature. A weed is a subjective description invented by humans. Humans naturally like things which are scarce. Jewelry has little utility above other rocks, but we like gems because they’re rare. So a weed simply just means a plant that there is too much of, which results in a tautology of why there are always so many weeds.

Additionally, if you want a plant that does something useful, like have a big flower or fruit, you need to provide it with nutrients. Things we call weeds are generally plants that only need sunlight and water. And there are a lot of them because most soil does not have enough nutrients to bear fruit.

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