Since Thailand took marijuana off its list of drugs that are illegal, people there can now grow it at home and sell it.
The country is the first in South-East Asia, which is known for having strict drug laws, to take this step.
But using marijuana for fun is still illegal, even though supporters say the change makes marijuana less of a crime.
The government hopes that making it easier for people to buy and sell cannabis locally will help agriculture and tourism.
It is even giving away a million cannabis seedlings to people to get them to pick up the plants.
Anutin Charnvirakul, deputy prime minister and health minister, declared on social media last month, "We can gain money from marijuana and hemp."