I love the blue of the phlox as a backdrop to the Black-Eyed Susans, it really makes the yellow pop! I'm a big fan of blue flowers as backdrops, in general. Do you notice any invasive tendencies of the blue phlox? I thought I had read that it spreads quickly, so I stayed away from it, but you're making me want to re-visit the idea of having phlox in my garden.

That Phlox hasn't been invasive at all. It is interesting in that the color varies quite a bit during the day depending on the sun or if it overcast. Thanks for the nice comment about the picture.

The colour combination is just perfect! The blue is almost purple!. Do you have mildew problems with your Garden phlox? I had assumed that phlox preferred wetter soil than rudbeckias. I have a rather sandy soil and rudbeckias do fine, however not very long lived. Perhaps three seasons in a row. So I just keep sowing them each year to have plentiful. Your joy for your grandchildren is portrayed in each of your pictures you have uploaded! There is definitely so much more to gardening than just plants. and their lovely pictures... warmly from the s. hemisphere. Arturo

Thanks Arturo.........there are times when this phlox looks bluer and other times more purple. I have a little mildew but not enough that it discourages me from growing them. The two that stay the cleanest are a white...David...and a pink called bright eyes.

I love the intensity of your blue phlox in your photo. It's a stunning combo. Thanks for posting it.