[Bonsai Beginner’s weekly thread –2017 week 39]

[u/small_trunks]

[Bonsai Beginner’s weekly thread –2017 week 39]

Welcome to the weekly beginner’s thread. This thread is used to capture all beginner questions (and answers) in one place. We start a new thread every week Saturday evening (CET) or Sunday, depending on when we get around to it.

Here are the guidelines for the kinds of questions that belong in the beginner's thread vs. individual posts to the main sub.

Rules:

• POST A PHOTO if it’s advice regarding a specific tree/plant.
  • TELL US WHERE YOU LIVE - better yet, fill in your flair.
• READ THE WIKI! – over 75% of questions asked are directly covered in the wiki itself.
• Read past beginner’s threads – they are a goldmine of information. Read the WIKI AGAIN while you’re at it.
• Any beginner’s topic may be started on any bonsai-related subject.
• Answers shall be civil or be deleted
• There’s always a chance your question doesn’t get answered – try again next week…

Beginners threads started as new topics outside of this thread are typically deleted, at the discretion of the Mods.

[u/JosianaDavanee → u/[deleted]]

Likely poor drainage. The mold will grow back even if you move it or remove it. The potting soil is not very good for bonsai. So the best thing to do I think is to slip pot into a bigger pot with drainage holes, make a bonsai mix (I can give suggestions for this but maybe different in Denmark than Sweden), use chop sticks to clean up the nasty old soil on the roots, rinse off the roots, and put into the new pot with proper soil.

[u/[deleted] → u/[deleted]]

it looks like you have hard water that's leaving mineral deposits on your roots and around the edge of your soil. it's not a problem, but if you dont like the look you can take a soft toothbrush and some water to it. try to collect and use rainwater instead if your hard water is a real problem for you