The spring flush is usually the best one here in Zone 7b Texas. They take a break, a month to two months, between flushes; this is when they grow new flower buds. The next flush I get will be in June-July and the last one is in early Fall. There may be some random flowers at other times but not much to speak about or photograph. Due to the local weather conditions, you may not get a flush sometimes. For example, last year we had a drought, was very dry and I hardly got a peep (flowers) during the summer.