it looks lovely jonathan, i've not heard of it and ( wrong I know ) water my cammelia with tap water and give it an ericaceous feed !

It looks very healthy, I save my boiled water from the kettle for pot plants and then like Pamq says, give it an ericaceous food.

Why boil tap water? I filter mine before giving it to my house plants, so that chlorine is removed. What does boiling achieve?

Nothing so far as I know Jonathan... Tap water with vinegar added should work but it will be 'by guess and by golly' an ericaceous feed is safer.

Save it for your fish and chips!!

I didn't know you had to do anything special when watering azaleas! I have a beautiful Japanese azalea on my patio that just gets watered with the hose along with the rest of the garden, and it has survived and flowers profusely every spring. It's gorgeous. Have I been doing something wrong?

Boiling the water removes some of the "hardness" - the calcium and magnesium salts you get naturally in hard water areas. When the water is heated some of the salts come out of solution - making the "limescale" you get on elements in kettles, dishwasher, water heaters etc in hard water areas. "Soft" water doesn't contain these salts. We moved to Cornwall (soft water) from London area (hard water) with a furred up kettle and within three months the element was sparkling clean!

I have always used my boiled water to water my plants and they love it, I suppose I dont like waste. Thanks B, I knew I did it for a reason just couldn't explain.

We use vinegar in the tap water for azaleas here, Jonathan! We use about 2 ml of white vinegar per liter of water, but our water is extraordinarily hard (pH of 8.5). You may want to use a little less, to start out with. Filtering the water, or letting it stand overnight to remove the chlorine is also useful--before adding the vinegar, of course.