Since anise plants can reach heights of up to two or three feet tall on slender stems, it isn't uncommon to see them ...

Anise Hyssop. Bob Stefko. ... Either cut the top of the plant’s stems back to a leaf node when they finish flowering or cut entire stems down to the ground.

Anise grows best in full sun and soil with good drainage. You’ll need about 120 frost-free days to get usable seeds. For most people, that means starting the growing process indoors.