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mould

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irenewelsh | 21:31 Tue 01st Feb 2011 | Gardening
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what causes a white mould on the top layer of soil on my indoor plants. it is not killing the plants but looks unsightly

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Is it quite humid in your house? Are you over-watering?

I'd scrape off that top layer (including mould) and top it up with a good potting compost.
Sounds as if your compost is stale & lacking in nutrients. Re-pot using fresh compost then cover the surface with horticultural grit.

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