The flowers or tips of limbs are black & shriveled. They have been potted about 4 months & were doing great, but for the last week they havent been blooming but a couple flowers. Its been hot, & I was trying to water everything every 2-3 days so is the problem to much water? They were beautiful & thriving, but now no flowers but the plant looks healthy...any help will be appreciated, thanks!

sgirl, where do you live? Is the weather cooling off?

I Live in Phoenix and at a certain point when it's cooler at night and during the day the blooming slows down and they start a dormant track. This seems a bit early, but perhaps your evenings are cooling down too? Also, too much water can harm them, I've found.