I have had a hibiscus for about 3 years and it flowered for 2 of those years. Until my husband pruned it. It has only had 1 flower in the last year. Now it is droopy, lifeless, and the few leaves that are left are yellow. We fertilize it according to directions with either Shultz or Miraclegrow. Should we repot it? We repotted it 3 years ago when we first got it. I really want to save this plant if I can. Help!