Here are pictures from the 2016 season. Both indoor and outdoor plants were giving high yields every 3 weeks or so. The outdoor planter used regular potting soil, so became a little too dense and compacted and wet. you can see this in the yellowing of many of the leaves. The key is to mix perlite in to get a dryer, better-draining soil. The pot is also over planted, which eventually led to downy mildew which killed off the plants fairly rapidly. Still, it’s an impressive wall of basil, grabbing every bit of that 4 or so hours of morning sunshine.
The indoor basil were also over planted in thick, wet soil, but to a lesser degree on all accounts. They thrived until they met a rapid death to downy mildew.
The total bounty was plenty for pesto.