Hi all. I was wondering if you could help me with my hydrangea. It is indoor potted grown from a cutting of one that used to grow at my late grandmother's front door so I would really like to save it.
Previoulsy growing well the roots had started to come out the top of the soil so I repotted it in a larger pot using canna terra potting soil with some gravel in the bottom for drainage. After about a week leaves started turning yellow and dropping off. I noticed brown spots on some. I considered rust so snipped off those leaves effected, then I read that the alkalinity of the soil may have increased so repotted with new soil, ditched the gravel and treated with chealated iron. Still no joy. The new growth, for now, looks healthy. Anyone any ideas what I should do?