the yellow stuff looks like kids paint???

usually you strike very small cuttings.. that can cope until some roots appear ... yours look huge ... and it looks like they are desiccating before they can get a root out ... drying out ...

can we see a pic of the whole plant ...

did you start with moistened media ... or bone dry ... you can add a little moisture to a damp media ... but its often near impossible to wet a dry media from the top in time for the plant to grow ...

ken

The yellow is paint. The seller splatters washable paint on them to color code them. I brought them home from Florida.

I followed the instructions given and started with bone dry media. Since I live in Colorado I started running a humidifier hoping it would help. I’ve read about people soaking them to rehydrate? Should I water, soak, or replant in moist media?

Thank you!

I let my cutting dry then water. I have read different ways. My cuttings are heartier and seem to grow well easily. They even survive the over watering that rain sometimes delivers in my area. I have 5 huge plumeria now. I would logically think, the larger the cutting, the more water needed to start it. Good luck.

As soon as you see the your plumeria breaking dormancy and, if the weather allows, soak your plumeria roots. Acclimate it to more sunlight in stages of a few days each, starting with bright shade, morning sun, more sunlight, until they get full sun.