While it’s not a danger in and of itself, efflorescence can be linked to excess moisture, mold growth, or poor drainage.

Sometimes, the white powder on your plant's soil is nothing to worry about but rather a sign of mineral buildup from fertilizers. When fertilizers dissolve in water, minerals like calcium and ...

We condense from an English exchange a description, of the white, or rather, tawny-colored powder lately devised ... woods (he keeps the woods steeped in water) which have acquired celebrity ...