Hi Myrna. how long have you had the plant? i repot each year after flowering is finished. and as the plant ages, i take cuttings and propagate. a plant book that i have (which i use often and find esp. for this plant was very accurate) says:
when
flower bracts fade, cut back the stalk to a pair of sturdy leaves to keep the plant bushy. also, as the plant ages, cuttings from stem tips taken between the late winter/late
spring will root easily and you should pinch back foliage on cuttings by 1/3 inch to 1/2 inch to prevent "fatal wilting" and you can cover the cuttings with plastic wrap unitl new roots form.
so maybe if you take action now it will bloom late summer. good luck!!