This monstera deliciosa cutting has been in water for 10 days. This white things appeared on the aerial roots. Is it good or bad? Baby roots or mold?
After how long can I expect seeing some roots ?
Many thanks in advance for any help !

Neither good nor bad. Neither baby roots nor mold. Change the water weekly and be patient. New roots will emerge from the node, not from the aerial roots.

Have the roots with the white nodules been submerged in water? My first thought was that they looked like mealybugs but if they have actually been in the water, I wonder if they might be emerging nodes of little feeder roots? I hope you will keep us posted with updates!

Yes, if those are the roots in water, it looks like root primordia to me.

Yes the root was in water so hopefully not mealybugs.
I will let you know how it goes.
Maybe I watch it to much and need to learn a little patience ;-)
(It's my first water propagation so beginners enthousiasm)

Even when propagating something for the 1000th time, I usually still feel impatience and enthusiasm. It's addicting. It's so fun to be sharing your first try!

Looks like I caught the bug then :-)
Thank you for your comments and support !

Update!
This looks more like a root

The white weird things are still here but also nice big roots so I'm happy.
No idea when to put it in soil though. What do you usually do?

There is no precise "right time" to move your rooted cutting into soil. You can do it now or you can wait. Your choice.

When you do, use a small terra cotta pot filled with a peat-based potting mix.

So, I know the thread isn't active anymore but I'll just give it a try since this is the only page where I found someone with the same problem I'm having right now with my variegated Monstera cutting.
After being in water for like 4 days, she developed the same weird white things on the aerial root.

How did they turn out at yours and did you take any steps on fighting them, @vertclaire?

Hi @Yukani! I'm having the same issue. The roots are developing fine, but there is this white stuff, and i don't know if i should worry about it.

@HildaHajdu - If the white stuff is soft and cotton-like, then it is probably mealybug.

HildaHajdu said:Hi @Yukani! I'm having the same issue. The roots are developing fine, but there is this white stuff, and i don't know if i should worry about it.

Hi @hildahajdu ! I know this is from a while ago so not sure you'll even see this, but I have the same! In water, did you ever find out what it was? Did it hinder your plant at all?

I have some issue about my water propagated monstera. I dont know what it is. Im scared it something harmful to my plant. 😞

Jenpajo said:

I have some issue about my water propagated monstera. I dont know what it is. Im scared it something harmful to my plant. 😞

Hi Jenpajo! How is this developing? I have seen the same white growths appear on several of my Monstera Albo cuttings, and have absolutely no clue what they might be. I've stratched some of it away very carefully, but it reappeared after about a week or so. Very curious (and a bit worried).

WillC said:@HildaHajdu - If the white stuff is soft and cotton-like, then it is probably mealybug.

The white stuff on my monstera adansonii plant roots are solid! I don't know what it is and I'm worried that it's a contamination?

I'm having this fuzzy soft white growth coming from the 'seams' of my cutting that start off bright white but slowly fade to brown.

Is this normal? Any tips to turn this into roots? I don't think it's mealy bugs. Right now I'm keeping the propagation in water, boiling the water before hand to remove chlorine, changing every three days.

Those are rooting crystals. It's the plant putting out growth hormone to stimulate root growth. Please don't scrub those off.

For future reference to those who might click into this discusion, compare what you are seeing to root primordia.