Production efficiency isn't a strong suit for these marijuana growers. : When it comes to investing in the marijuana industry, production isn't everything. But let's be clear -- it's still a really important piece of the puzzle. But what's arguably more important than simple peak production is how well cannabis growers convert their licensed square footage into yield. In other words, efficiency is king. Throughout the Canadian pot-producing industry, the average crop yield tends to be about 100 grams per square foot. However, two pot stocks have blown this average yield out of the water.