this post was submitted on 21 Jun 2025
33 points (100.0% liked)

Houseplants

5572 readers
1 users here now

Welcome to /c/houseplants @ Mander.xyz!

In between life, we garden.



About

We're a warm and informative space for plant enthusiasts to connect, learn, and flourish together. Dive into discussions on care, propagation, and styling, while embracing eco-friendly practices. Join us in nurturing growth and finding serenity through the extraordinary world of houseplants.

Need an ID on your green friends? Check out: !plantid@mander.xyz

Get involved in Citizen Science: Add your photo here to help build a database of plants across the entire planet. This database is used by non-profits, academia, and the sciences to promote biodiversity, learning and rewilding.

Rules

  1. Don't throw mud. Be kind and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.



Resources

Recommendations

Health

Identification

Light Information

Databases

FOSS Tools



Similar Communities

DM us to add yours! :)

General

Gardening

Species

Regional

Science


Sister Communities

Science and Research

Biology and Life Sciences

Plants & Gardening

Physical Sciences

Humanities and Social Sciences

Memes


founded 2 years ago
MODERATORS
 

This Hoya is growing like crazy, but I noticed these black marks on the vine. It also had some mold growth on the pon. I repotted with fresh pon into a pot that, I’m hoping, will allow better airflow. The roots looked really good. Do I need to do any additional treatment?

top 3 comments
sorted by: hot top controversial new old
[–] Shelbyeileen@lemmy.world 4 points 1 week ago

They look like a type of Grey mold, to me. Spray it with some neem oil, and it'll go away

[–] Mothra@mander.xyz 2 points 1 week ago* (last edited 1 week ago)

~~I'm not an expert, let me rephrase, I barely know anything but this to me looks like natural variegation. Please feel free to correct me if not, as I said: I'm taking out of my arse~~ Black marks yes nevermind I need to go to sleep

[–] Polkira@lemmy.ca 2 points 1 week ago

It just looks like normal growth to me. I don't have a khroniana black so I can't be certain for sure though. Honestly if it were me, I'd just let it do it's thing and intervene if the plant's health starts to decline. You could spray it with a fungicidal spray if you're really worried.

The mold on the pon is harmless to plants, I get it on some of mine since it's so humid. I had to really increase the drainage on my soil (equal parts perlite, potting soil, and orchid bark), and the bonsai mix I use for my semi hydro develops the mold if I fill the reservoire up too high.