I'm not going to be too paranoid about them crossing. Maybe I'll like the result

I'll probably keep the sweet basil in the front yard and the Thai basil in the back yard.
My plant is now about twice the size of that last photo, but it's not very dense. The leaves are pretty far apart.
Anyway, I went back to the Pho place and brought home two more sprigs about two weeks ago to sit in some water. They did absolutely nothing for the first week, and then one of them started putting out roots about a week ago. It was pretty sudden--nothing at all, and then a significant amount of root growth in 48 hours. After 4 days it looked like this:
By today the roots were 3-4 inches long, so I potted it.
Curiously the 2nd sprig starting putting out roots only yesterday. I don't know why it lagged the other one by 4-5 days. What gives something the signal to start putting out roots?
Anyway, I'll probably pot that one up next weekend.
Sunset 23/USDA 11a, Elev. 783', Frost free since 8,000 BC. Plagued by squirrels, gophers, and peafowl, but coming to terms with it!