Hello - I'm new to gardening, and have noticed some white powdery residue building up on the outside of a new terracotta pot (in which I have a Bird of Paradise). It seems to creep up from the bottom over time. I tried to wash it away with soap and water, but it returned. I'm wondering if this is some type of mold or is it due to mineral deposits? What can I do about it?
Thanks!
More than likely mineral deposits from leaching through clay pots. One of the features of using clay pots. Other types of pots show mineral/salt buildup on the interior of the pot above the soil line.
https://www.hortmag.com/headline/removing-white-crust-from-clay-pots
