Rhododendrons: Only 1 flower on my rhodo...

2 years ago I transplanted a Rhodo from my Mom-in-law's into my garden. It's been very, very leafy, but last year only about 5 flowers, and this year only 1 lonely flower! What to do? I trimmed it down a bit last year, dead-headed and took all the dead leaves off when they were done... maybe I should just leave it alone??

 

It was probably the pruning. The flower buds are set on the ends of the previous year's strongest shoots each fall.

 

Okay, so I'll leave it alone this year. Thanks a bunch... I kinda thought I over-babied it...