150 Gallon fabric pots - 2 plants? Outdoors

A couple of years ago I doubled up some pots and got some massive plants. Does anyone else do this on a regular basis to keep the footprint down of the garden size / plant count? I planted each one at a slight angle to grow away from the other.
Thanks amigos!

Sure, you definitely can grow more than one plant in a big pot-think of the rows of tomatoes we grow in raised bed gardens. 150 gallons is a good size bed, like 5x5 or 4x6 or something, right? You could easily grow two massive plants, or even 4 large ones I suspect. I do grow my plants larger indoors than I would otherwise, due to plant limits.