Housekeeping · 실내식물 관리

White crust on houseplant soil? Check salt buildup in 6 steps

Inspect possible fertilizer salts on potting mix, adjust drainage and watering, and avoid stressing roots.

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University of Maryland Extension

Original source guidance: White crust on houseplant soil? Check salt buildup in 6 steps

Link card to original guidance from University of Maryland Extension

University of Maryland Extension notes that soluble salts from fertilizer and water can accumulate as moisture evaporates. A pale surface may have other causes, including fungal growth, so do not diagnose from color alone.

Your try-it-at-home checklist

0 / 6 done

1. Inspect whitish deposits at the soil surface or pot rim; note brown leaf tips, slowed growth and drainage changes.
2. Check soil moisture by touch and adapt watering to your plant species; succulents and cacti can need much less water.
3. Review how much fertilizer was applied, and pause extra feeding while identifying the cause.
4. Confirm the pot has working drainage holes and that excess water can escape. Do not flush a poorly draining pot.
5. Only if salt buildup is plausible and the species and potting mix can tolerate it, gently remove surface crust and flush with clean water, allowing complete drainage.
6. Empty runoff trays and monitor the soil. If deposits persist or roots appear damaged, consider repotting and seek species-specific guidance.

Original source guidance: White crust on houseplant soil? Check salt buildup in 6 steps

Your try-it-at-home checklist

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