I have several Hibiscus bushes but one has recently started looking like the leaves are wilting. I dug down into the soil and found hundreds of tiny blue bead looking things all through the soil. What can it be? Maybe something from the bag of potting soil I put in my large container in the spring? It has done very well since March until just the past week or so. Could this be my problem? Help. . . I don't want to lose this one. It's my only yellow one. Thank you so very much for your assistance.