| I have 2 Cattleyas potted in pea gravel so it can be used. The important question here isn't "can I use gravel?" but it is, "How can I give my Phal the conditions it wants?" Phals like to be kept evenly and gently moist. If you can do that while using gravel then your plant will do well, not because you did or did not use gravel, but because you gave your orchid what it needed. This is always the bottom line.
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