LoveGrowingIt said:

Yes, it looks like mold. It should be okay. White mold isn't harmful, AFAIK. When I've had it, I loosen the soil to help it dry and/or top dress the soil with fresh soil. It's okay to add soil against the stem.

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growmie said:

You can simply scrape it off, add a fresh layer of potting mix once the rest of the soil is dry, and ensure it doesn’t get too moist in the future. Avoid overwatering. Improve air circulation w/ fan etc.

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jamesmessenger1 said:

Looks like a LOT of stem without any branching!

What light are you using?

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RootFarmer said:

Probably arial mycelium. I see exposed roots and a lot of unused space in your pot. You might want to add a little soil.

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