Hello.

I was given a jade branch eighteen days ago to propagate. She told me to stick it in some soil and give it a light watering. Well, now the leaves are starting wrinkling. It's mainly the upper leaves. Is that normal?

well you really wouldn't want to have loads of leaves on the jade cutting because that just leaves the cutting more work to keep those leaves alone. What I'd do is take all the leaves off except for maybe the top 5 so it won't be so stressull on the cutting. You want it to grow roots first and then grow leaves and new growth,etc. wait for some others to come and put their input in here first though because I might be wrong. good luck!