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24 articles · page 3 of 3

Pile of white perlite granules on a terracotta surface
Soil6 min read

Perlite vs Vermiculite: They Do Opposite Things

Both are white-ish mineral granules sold on the same shelf for the same price, and people treat them as interchangeable. One adds drainage; the other adds water retention.

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Assorted rounded gravel stones of varying sizes
Soil6 min read

The Gravel Layer Myth: Why It Makes Drainage Worse

Putting stones in the bottom of a pot is the most widely repeated piece of plant advice there is. It has been known to be counterproductive since the 1950s, and the physics is not complicated.

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