How to Flush Salt Buildup from Houseplant Soil
To flush salt buildup, slowly pour room-temperature water through the pot until it flows freely from the drainage holes, use 4x the pot's volume of water. Let drain completely. Repeat monthly as preventive maintenance. White crust on the soil surface or pot rim indicates salt accumulation. If buildup is severe, repot with fresh potting mix. Reduce future buildup by using half-strength fertilizer and flushing monthly.
What You Need to Know
To flush salt buildup, slowly pour room-temperature water through the pot until it flows freely from the drainage holes, use 4x the pot's volume of water. Let drain completely. Repeat monthly as preventive maintenance
White crust on the soil surface or pot rim indicates salt accumulation. If buildup is severe, repot with fresh potting mix. Reduce future buildup by using half-strength fertilizer and flushing monthly.
For personalized recommendations based on your specific garden size and fertilizer, use our fertilizer calculator.
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