Did you know about best way to propagate hoya retusa??
The best way to process it is by cutting the stem. Don't worry, it's really quite simple! All you need is some sharp scissors and a planting medium that has good drainage. A mixture of cactus or succulents is very ideal.
It's really easy if you use the stem cutting method with well-drained soil! And for water? I haven't tried it yet, but I'm really excited to give it a go!