Environmentally Safe Mold Removal from Ficus Soil

My 7+ ft weeping fig summered outside and caught a chill, losing leaves. Now there's a slight mold layer on the soil surface. How to clear it without chemicals? 24" pot, warm house, full southern exposure, generally healthy. Have small children, prefer environmental remedies.

Expert Advice

Mold spores entered the soil outdoors; indoor warmth favors their growth. The mold isn't hazardous to the tree, but you can eliminate it safely.

Low-Tech Treatment

Scrape off and discard all visible mold and loose surface soil. Aim to remove invisible spores too. Repeat several times until eradicated. Allow the top 1–2 inches of soil to dry between waterings. This safe, effective method requires persistence.

Regards,
Will Creed, Interior Landscaper
Horticultural Help, NYC
wcreed@HorticulturalHelp.com