“The leaves of my peonies are covered with what appears to be a white mold, with some of the leaves even turning brown already. What is this problem, and will it affect the plants next year? Should I ...

Dear Master Gardener: Some of my peony bushes have leaves that have turned powdery white. Should I take some action? Answer: It sounds like your peony bushes are infected with powdery mildew, a fungal ...

Q: What is this fungus on the leaves of my shrub, and how do I treat it? – Brian K. A: The shrub is a ninebark, which is a common and important landscape shrub, and many different named cultivars are ...

As the growing season progresses, keep an eye out for a white or grayish-white powder on your plants. That’s powdery mildew, a fungus that affects a wide range of fruits, vegetables and flowers, ...

These plants were cultivated to resist common diseases like powdery mildew and root rot. Elha Wulansari / GETTY IMAGES In a perfect world, our plants thrive and blossom without a single setback—but ...

These long-lived perennials provide beautiful displays with their short, shrubby growth; dark glossy foliage (some species); and showy blooms, even though the blooms may not last long. It is true that ...

AMES, Iowa – Peonies are a beautiful part of any landscape, and they thrive in Iowa. However, they do require some special care and conditions, and can develop problems which must be addressed. Fall ...

The key to beautiful blooms is planning ahead of time.