Posted: 10/11/2014 at 14:18
I've seen people water before or after, from the top and by standing in a tray of water.
If I'd sown agapanthus as in the Cottesbrooke video I'd give it a light watering from above after sowing to settle the seeds.
You might start a new thread for this unless you are growing agapanthus. You'll get more opinions that way.