So my tomatoes all have flowers and all are getting little green tomatoes except for the Brandywines. The Brandywines had flowers just like all the others, but the flowers just ran their course and then fell off - no fruit. Anybody know what could cause that?

I water them all the same. The Brandywine section didn't have as much fertilizer as the "main" garden section, but the Borgo Cellanos are right next to them and they all have fruit. The Cherokee Purples, Eva's Purple Ball, Rutgers Select and Homestead all have little tomatoes coming. Only the Brandywines are a no-show so far.