Question

I recently transplanted some hydrangeas from a friends garden to our back yard. They are in partial shade, and have been getting plenty of water, but they all are developing purple and brown splotches all over their leaves.

I have tried Neem™ oil, thinking that it was fungus related, but it has not seemed to have any effect.

Any gardening experts out there have any recommendations?

Thanks

Answer 1

I googled sick hydrangea and these are the links which came up.

www.aces.edu/pubs/docs/A/ANR-1212/

www.dirtdoctor.com/view_question.php?id=204

Answer 2

Hydrangeas often resist disease better when grown on irony soil. I always plant a couple of four inch nails under a hydrangea. I've got one growing in a bed that is killing rose bushes with blackspot, and it shows no sign of infection. Wish there was an easy way to help the roses ...

Try watering with a teaspoon of iron alum (copperas) in a quart of water. Repeat the dose a fortnight later, if you see no improvement. Worst thing that will happen is that it will make the flowers blue ...