Here is why I focus on flowers more that veggies in my garden. This year my faithful hydreangeas by my front door are getting more faithful care and nourishment. I trotted out to the garden center and bought 8 two pound bags of aluminum sulphate, the silver bullet for achieving maximum blue blossoms. I think it worked beautifully. I apply the granules very liberally around the roots and water it in. Caution, though. I did put too much on a miniature variety of Endless Summer and killed it. That's a first for me.
In the alkaline soil of Dallas, aluminum sulphate has to be applied several times throughout the growing season but it's worth.
What are your experiences with hydrangeas?
I'm a sure enough Dallas native who spent a good part of my life in northern New Mexico, where I learned the arts of spinning, weaving, and dyeing. Combining those skills with my long time love, knitting, is what I do best these days.