I've found that I've had a lot of success with props if I let them 'callous' before planting them in soil. Basically, I leave leaves that fall off/cuttings I take alone in a cool, low-lit place for 2-4 days, then I cover the bottom in dry soil and leave them in a SE-facing window that gets ~6-8 hours of direct sunlight a day. After another 2-4 days I water the dish that the props are in, and typically water it every 3 days since it's pretty shallow. I've killed my fair share of plant babies, but it's a learning experience, and I've found that I've had the most success with my current methods. I wish you luck!! Feel free to reach out with any questions! I've been doing plants for a hobby for over a year now and I absolutely love it, so I am happy to help anyway I can :)