To keep the marijuana smell from leaking, you must store them properly in airtight containers. You must place dried leaves in a Ziploc bag to keep the scent from going out.
A mason jar will also be a good alternative if you don't want your family to discover that you smoke marijuana.
Containers that are effective in sealing air, such as mason jars, Ziploc bags, and Rubbermaid containers, would be great materials to ensure that your marijuana's scent is secret.