It’s a Mrihani x Opalescent basil hybrid, I have about two dozen of these started with a variety of mutations. Most of them have mottled green (as well shown by the plant to the left) and all of them have a beautiful metallic purple shimmer to them. This gorgeous seedling is a beautiful example of a whorled phylotaxy, having four leaves per node instead of two.
I’m going to try to see if I can get this mutation somewhat stable, as it’s double your basil per basil, and who wouldn’t want that?
That's really interesting. How'd you end up with unstable basil in the first place?
The Experimental Farm Network store! Really cool stuff available there.