Question
Help -- I went gaga trying to get blue Hydrangea blooms by pouring leftover coffee and tea juice (everyday for a week) into the soil.  The Hydrangea now looks like it's on its last leg and ready to call it quits -- the leaves are either burnt or the good leaves are drooping and the new bloom-to-be is also drooping.  Can I save it?  Thank you and I love this website.

Answer
Hi Kelly, The coffee and tea are not the culprits.  A week is not enough time for a plant to show any effects from a pH change and I don't believe it has changed much. Most likely, water is the problem.  Too much or too little nets the same results.  Water thoroughly when you water and physically check the root ball with your finger to see when it needs more. Hydrangeas have so much leaf surface, that on a hot day, evaporation from the leaves can exceed the intake rate and the foliage will wilt and often burn.  
There may be other factors like voles, weather, etc. but I'm pretty sure it's not the coffee and tea.  Jim