That crusty white deposit on your clay pot's exterior? It's efflorescence—mineral salts (calcium, magnesium, sulfate, nitrate, phosphate, ammonium) from fertilizer and potting soil that wicked through the porous clay and crystallized on the surface.
Soak the pot in a bucket of water for an hour, then scrub off the powdery residue.
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Improving Clay Soil for a New Garden After Pine Removal
Improving Clay Soil Drainage for a Healthy Lawn in Texas
Amending Clay Soil for Perennials and Trees: Compost, Peat, Gypsum, Not Lime
Keeping a Sentimental Rose in a Pot Long-Term: Zone 7 Strategy
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When and How to Repot a ZZ Plant (Zamioculcas zamiifolia)
Repotting Your Beaucarnea: Pot Size, Soil, and Care Tips
Storing Empty Clay Pots Outdoors in Winter
Elephant Foot Plant (Beaucarnea recurvata): Care for a Rescued Ponytail Palm
Clay Pot Mold: Why Plastic Pots Are Better for Herbs and Miniature Roses
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