Hardly can focus right!

I know i have talked about my G6 and the problem w/ its macro problem before, but it seems to be getting worse. Now that it's spring, i'm taking more macros w/ it of the blooming flowers. It seems that if the sun isn't blazing outside, it never focuses right. Yesterday for example, it was very sunny out, but it took me 10 seperate auto focusing tries to finally take the picture. What always happens, is that the camera focuses on the background subjects, never the foreground ones. Like it focuses on the ground rather than the flower. And when i try to focus, it mostly always comes up yellow/orange, hardly ever green. I have tried manual focus, but that doesn't seem to help either. Can anyone help me or give some advice?

I have a G5 and the macro is not anything to write home about (unless you use the ubermacro technique described in earlier threads here)
It sounds to me you get too excited and close to the flowers since you always get the background in focus, move away a little and crop the picture later instead.
I sometimes hold my fingers parallell to the object if it is really thin and small compared to the bacground and let the camera focus on them instead.

Make sure you are at the widest end of the zoom range before you shoot.

Do not use it in auto if that is what you are doing, I use P mode then put it in supermacro mode, Then I will also use AV mode in super macro mode,

You may already be aware of this, but the focus algorithm depends on finding a contrasty verticle edge within the green/yellow reticle to determine focus. You may need to focus on an edge and then recompose? In portrait mode, go for horizontal edges.
I find that manual focus works well, though it does take some getting used to.

Also, consider adding one of Canons Macro lenses (e.g. 250D) with a lens adapter.

It might make a lot of a difference, if macro is very important for you.

Best regards,
Andy

I usually manual focus on the flower or whatever and then you can just move the camera in and out to get different focal points.