A quick & easy tulip pattern, written in US crochet terms.

You can use any kind of yarn, just choose the hook size accordingly.
Kinda silly to state the obvious, but you’ll need a flower color of your liking & green for the stem and leaf. Also, a wooden stick for the stem, diameter depends on your yarn - satay sticks work fine for my DK weight flowers (they are about 5 cm - without stem of course).

Techniques you need to know:
start with magic ring
single crochet
invisible decrease
slip stitch
half-double crochet
double crochet