Ask a Question forum: Mould on soil of fiddle leaf fig?

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Australia
Lynette_S
Mar 4, 2018 4:54 AM CST
Hi all. Help!! I bought this fiddle leaf fig 2 weeks ago. It was in a windy spot and fell twice, hence some roots are exposed. I may have watered it 2-3 times max over the last two weeks. It's been indoors for the second week. I was just admiring it and two leaves have fallen off, and upon inspection the soil has mould on it! It smells pretty bad too. Pictures attached. I plan on repotting it tomorrow. Is there any other advice I should take to treat the mould?
Thumb of 2018-03-04/Lynette_S/86555d
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Name: Philip Becker
Fresno California (Zone 8a)
Image
Philipwonel
Mar 4, 2018 6:40 AM CST
Hi : Lyn & I tip my hat to you.
A spray bottle of one part peroxide to four parts water.
Get it potted up to a heavy pot.
Mold means, to much water, but most likely, to cold or damp location. Move to sunnier dry locale.

Bye Bye 💃
😎😎😎
Anything i say, could be misrepresented, or wrong.
Name: Will Creed
NYC
Professional indoor plant consultan
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WillC
Mar 4, 2018 9:58 AM CST
The presence of mold on the soil raises questions about the quality of the nursery grower who should know to use sterile soil with potted indoor plants. The mold is there because fungal spores were part of the potting mix.

Scrape off all of the mold from the surface and any whitish mold roots that penetrate deeper into the soil. Spray the surface of the soil lightly with alcohol.

There is no reason to repot and if you try to replace the existing soil you may kill the plant. Keep your Fiddle Fig inside in front of a sunny window. Allow the surface of the soil to dry slightly before watering thoroughly. Be vigilant and remove any additional mold as it develops. You may need to be persistent, but in time it should disappear without resorting to drastic measures such as repotting or fungicides. Warm temps, low humidity and good air circulation all help deter the development of mold.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
I now have a book available on indoor plant care
Australia
Lynette_S
Mar 4, 2018 4:08 PM CST
Thank you so much both. I was going to repot anyway before the mould appeared but now perhaps I won't. Should I just add potting mix to cover the roots then? (After removing the mould of course). The leaves are actually quite big and cover the opening of the pot so I don't know how much ventilation or sun can get to the soil itself. Does that matter? Thanks again!!! Really appreciate your help.
Name: Will Creed
NYC
Professional indoor plant consultan
Image
WillC
Mar 4, 2018 6:41 PM CST
The roots that are exposed on the surface have already developed a bark-like covering for protection and do not need to be covered with soil. In fact, that would be a mistake. Just remove the mold as best you can and don't add any new soil.

Don't worry about the leaves covering the soil.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
I now have a book available on indoor plant care

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