When growing plants in pots, it’s sometimes necessary to increase drainage because some plants are sensitive to excessive moisture around their root zone, and stagnant water at the bottom of the pot can lead to root rot.
The old garden myth of putting a layer of rocks in the bottom of a pot to increase drainage has been thoroughly debunked by many university agriculture extension agencies, and if you want to see the technical explanation, please read my article – Should You Put Gravel or Rocks at the Bottom of Plant Pots for Drainage?
There are proven ways to increase drainage in pots which are taught in horticulture schools and used by plant production nurseries. In this article I’ll explain the science behind how we increase drainage in pots, and practical advice on which materials we can use for the purpose.
Why Plant Pots Don’t Drain Completely
Water naturally flows…
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