Essex lost Mark Pettini first ball but Flower, who guided Essex to FP Trophy glory at Lord's last month, made 68 off 42 balls to seal it with an over left.
Flower clipped the ball off his legs to deep square leg and attempted a second run, only to find himself short of his ground when Buttler fired the ball in for wicketkeeper Kieswetter to remove the bails.
We also saw a beautiful solar powered flower sprout in Southern California and looked at the worlds first solar-powered soccer ball, which could help the blind play soccer.