One could say that Sakura's mushrooms had become famous both inside and outside the Fire Nation.
"Sakura, you're back, how was class assignment?" Haruno Cho had retired from his ninja job and was now focused on growing mushrooms at home, which was more lucrative than being a ninja.
Ninjas, although under the management of the Hokage, could retire when they reached a certain age, as long as the Hokage approved.
Haruno Cho was now a retired ninja.
Although as a retired ninja, he didn't have a good reputation among other ninjas, he was quite humorous himself and did not care about that reputation.
However, if Konoha were to go to war with other ninja villages, these retired ninjas would volunteer to join the battlefield to protect their village's peace and fight the enemy.