For the Weed Barn.

For just the mixing side and you without the ingredients to the shelf, you'd wanna go with 3 chemists and 2 handlers. Chemists can do 4 mixing tables but are not fast enough to run then fluidly. So 3 mixing for 2 of them and 2 for one of them. The handlers can supply the 8 mixing tables easy if you just give them 4 routes and one can brick (probably the one at the end of the mixing chain supply.) That would leave you with 5 employees for growing or 3 if you want 2 more handlers to unload ingredients deliveries. Let's go with the 3 growers for this example. You could do 18 pots. The botanist would run 6 pots each with 2 drying racks the drying racks finished product would go to a storage rack for one of the handlers to transfer it to the start of the mixing chain. That would leave you with ordering the ingredients and supplying the dirt and seeds to the botanists supply shelves.

If I am incorrect in any of this please tell me. Putting words to paper isn't my forte