My basil plants got off to a very slow start last year, I think that they were in too heavy potting soil. Replanted them mid summer and watered more carefully and they took off from July forward. Have been pleasantly surprised by their vigor as the plants were moved to the greenhouse in October. Here is a photo from this morning. The plants are still growing well, with only an occasional flower spike.
Several plants in a three gallon container.
Three clusters of plants in 1/2 gallon nursery pots.
The first crop seeded for the 2009 season. Will set these in larger pots when the time comes.