Texas Gardening: Oak Leaf Hydranga-Wilted and Spotted Leaves, 1 by garden_gaiden

garden_gaiden wrote:
Our Oak leaf hydrangas started beautifully this year, but then began to exhibit a red spotting on the leaves, immediately followed by wilting and dying off. There do appear to be some new leaf buds on the limbs where the wilt has run it's course, and there are parts of the plants that are putting on new growth that is not yet affected. We have sprayed initially with Potassium Bicarbonate in the case that it is fungal in nature, but recent rains have washed the treatment away. Our beds are completely organic. Due to recent heavy rains and the fact that the beds are located in somewhat of a low area, we are concerned that, even though the drainage is good, the soggy nature of our Spring may be a cause. Any help in this area would be appreciated.