If you're concerned a out time either get faster growing species or plant a larger amount and properly store them until needed

This is why I just grow my weed. Fill my jar and start over which by the time I'm close to done with my cured bud my fresh batch is ready to dry.

Sure seems that way. Now try chili.

Maybe it would be a good idea to collaborate with neighbours or friends or such, economies of scale and whatnot.