This crochet leaf pattern is very easy. You can make these leaves with or without stem. I’ve made them using crochet thread size 10 and their size is about 1.5“ long with a stem. You are welcome to experiment with different yarn and hook sizes to achieve bigger leaves.

Video tutorial: https://youtu.be/5CCSFLY9j5M?si=MWJSSX3xIlC6InMO