Last year I grew a new ‘salad green’ for me called Red Orach which is also known as Mountain Spinach. The variety I grew came from Baker Heirloom Rare Seed company and it makes a great red addition to salads.
It’s taste is similar to spinach and your suppose to pick it when it’s young and tender to eat. I didn’t pay much attention to it later when it went to seed. This year it is self sowing itself everywhere and is beautiful. They say it can get up to 4-10′ tall but mine only got about 2’tall. I placed it in the back of the raised bed so it wouldn’t shade everything else.