A couple of months ago, I asked about some Chinese basils I had growing in passive clay pellet 2 litre soda bottle planters. The new leaves were growing in very small, and they were turning deep purple. I was told this was likely to be a phosphorus deficiency, so I switched to a high phosphorus fertilizer and they have since gone green again.
However, I have some lingering problems.
1. I seem to have inadvertently bonsai'd the basil. As you can see, the leaves are still very small. Some new ones have grown a little bigger, but not by much.
2. All it seems to want to do is flower. I pinch the buds off, they just grow more buds. It's been like this for months.
Incidentally, we've just had a very cold winter by subtropical standards. There was a whole month where it was less than 50 degrees F (10 C) outside. The plants survived.
Here's a couple of pictures.