Question
Hi,

one of my sundews has this white residue on the soil, is it mold or something else.

Thank you
Hannah

Answer
Hi Hannah,

It probably is mold.  That's very common in the winter when our houses are closed up, and mold spores are more present in the air.  Try scraping the mold off, then when you water, top-water the pot frequently.  This will help keep the spores from getting started on the soil.  If it's a serious problem, you could spray the soil with a sulfur-based fungicide.  Here's an example:  http://www.saferbrand.com/store/garden-care/5450

Good Growing!

Jeff Dallas
Sarracenia Northwest
http://www.cobraplant.com