July is a quieter, greener month, full of promises yet to be delivered. That is why border phloxes are such valuable summer perennials. They can colour that gap, flowering when rudbeckias ...

This water stress disease debilitates plants, leaving them covered with white powder. Phloxes, monardas and heleniums are prone to it. Once the plants are thinned, wait for a damp, warm day and ...

The many gloomy days this summer have added to phloxes' bright, pretty charm. It’s been a good year for phlox. That won’t compensate for how awful the tomatoes have been, but we will take what ...

Q. I definitely want to try one of the phloxes you mentioned (“Garden phlox is a pain, so what changed my mind?’’ Ask the Gardener, July 28). When is the best time to plant it? J.C., Dover ...