Posted: 29/04/2013 at 13:14
If you pick out the tips of basil and space the plants out a bit, they'll fill out a bit more than the supermarket plants - in fact, when I buy supermarket basil, I transplant it into a pot twice the size and space the plats out - it can last for many weeks. But they ares still quite small plants and you can do with plenty of them if you like it a lot.
Coriander tends to stay a bit leggy, in my experience, but is probably better not too crowded. Parsely does best if it's really well spaced out - maybe 8 or 10 inches between plants.