On February 6, dispensaries all over the state of Missouri became legally allowed to sell recreational marijuana. Before you stop by your local weed shop, there are a few things that are important to know.

Cash only

Though legal in Missouri and several other states, recreational marijuana is still illegal at the federal level. Because of this, you have to pay in cash.

21+

Just like with cigarettes, you have to be at least 21 years old to purchase recreational marijuana in Missouri — so be sure you have a valid photo I.D. ready.

Smoke at home

Just Missouri legalized recreational marijuana doesn't mean you can light up anywhere. You can only use it in the privacy of your own home. This also means you can't smoke in your car. Break this rule and you'll face a fine of up to $100.

Three ounces per purchase

According to Amendment 3, you can buy up to three ounces of dried marijuana or its equivalent at a time.

Grow your own

One of the biggest perks to legalizing recreational marijuana in Missouri is that state law allows you to apply to grow your own at home. The Department of Health and Senior Services started accepting applications on February 6. It costs $150 for a license, but it's good for three years and allows you to have up to six flowering marijuana plants and up to 18 non-mature plants. Keep in mind these plants are for personal use only and the license doesn't give allow to sell the marijuana you grow.