Unfortunately this is something you really need to make rather than buy, although you can buy the components required to make it.

Here's a kit that provides everything you need except for the bucket:
http://www.simplici-tea.com/5gallonbrewer.htm

If you want to save some money and make your own home grown solution, there's plenty of stuff on the youtubes about it.

Yes, I know that about hydrangeas, and would like blue; last year it was pinkish. I wonder whether, if I put it on now (in a week or so?) it would have any color effect? I won't worry about it, this first year.

Here is my camellia, which bloomed a few weeks ago, much to my surprise and delight! As I've only been here since September, I didn't know what it was! (I did recognize the hydrangea, of course. Had bloomed and was still flowering when I arrived.)

I would just leave them go and see how well they do with what is available to them. They may do so well that you will know they are getting all the nutrition that they need from nature. Fertilize if you realize that they are not doing well or don't bloom well.

but friend thinks hydrangea may. Here's a pic, from an awkward angle. I'm pleased to see green, and realize I can remove the dead wood.

but have a friend who has some. Every year, if I remember correctly, there are two years of growth. Dead wood has to be cleaned out, it flowers on second year wood, and there will be first year branches that will not flower this year but should not be trimmed at all. At least, that is how hers works.

We were just out looking at all the plants, and many do not even look like they made it through this past bitter winter.....but time will tell.

I think it has survived the winter, but won't know, comparatively, how well it will do. MAY give it some 'organic fertilizer,' as friend who suggested it is, apparently, a serious gardener (contrast with me, very newbie here.) Sound reasonable???

maybe offer to buy enough to dose those two plants for her to start? I use organic soil amendments while I plant and top dress w/ organic compost every year. Also use a basic time release sprinked on for heavier feeders once they really start going.

that's why I mentioned it here. She lives NO WHERE near me, so won't be sharing.

I intended to prune this baby today, but didn't get around to it. ONE of these days!!!

Lasts forever. And then a bag of good compost I use for top dressing and add to holes when I plant new stuff. Easy, peasy!

and took this pic today, a few days after the last. I'm rather pleased, even without fertilizer.

For organic solutions, I'd recommend Rodale's books. Pretty widely available, clear and comprehensive.