How to pot up a very large flower pot so that air permeability is guaranteed?

Here is one more approach for everyone, to instantly boost the air permeability of a large flower pot!

(Addition: a more careful method is to lay down a layer of succulent soil, then a layer of perlite, alternating them, and fill the upper part of the pot with our prepared succulent soil.)

In summer, the air permeability of the soil in a flower pot is put to the test. Every time you face a big-hungry flower pot, do you still feel the pain of the cost of soil? How did you solve it? Share it~~~ Have you ever filled it with foam?