Fertilizer salt build-up

Brown tips plus frequent feeding usually means salt build-up in the soil.

Diagnosis

Fertilizer salt build-up

What's happening

Spider plants need very little feeding and are easily over-fertilized. Excess fertilizer salts accumulate in the soil and burn the root tips, which shows up as browning leaf tips and often a whitish crust on the soil surface or pot rim.

How to fix it

Flush the pot thoroughly: run plenty of plain water through the soil until it drains freely, repeating two or three times to wash out the salts. Then cut back to feeding only once a month at half strength during spring and summer, and not at all in fall and winter. Trim the browned tips for a tidy look while clean new growth comes in.

What fixes it

If that doesn't fix it

This is general guidance based on common symptoms; individual plants vary.

Reviewed June 2026 · how we check this