Roman Gonzalez is the creator of the urban gardening blog MrBrownThumb, founder of the Chicago Seed Library, and a co-founder of One Seed Chicago. Powdery mildew is a widespread and easy to recognize ...

When moving peonies, also bear in mind that it may take up to three years for the new plant to start blooming. My peonies ...

Squash, roses, deciduous azaleas, asters and phlox are just a few of the many plants that are susceptible to powdery mildew fungus disease. It’s easy to identify because the leaves look like they’re ...

You might be noticing powdery mildew (a disease that causes a grayish, powdery film on leaves) in your garden. Common plants that could be affected are lilacs, phlox, bee balm, zinnias and nannyberry ...

“My peonies are covered in what looks like a white powder. What is that, and will it hurt my plant?” — P.F. Peonies are susceptible to powdery mildew, and what you are describing sounds like powdery ...

One of the best parts about having a garden in the summer is watching your plants grow throughout the season. But if you’re out gazing at your garden one day and notice some white circular spots on ...

Powdery mildew is a fungal disease affecting many plants, causing a white or gray coating on leaves and slowing growth. The fungus thrives in warm, dry weather with high humidity, especially in ...

Q. The leaves of my peony plant have developed a whitish coating and now the leaves are turning yellow and they look awful. Is the plant going to die, and is there anything I can do to get rid of the ...

Spring is in the air – and so is powdery mildew. This is the type of weather it loves. Watch for signs of this fungal disease on roses, grapes and ornamental shrubs, particularly on new leaves. A ...

DEAR GARDEN COACH: I have roses that all had mildew, all year, even though they were all labeled “disease resistant.” I put systemic fertilizer and did some spray and it didn’t help. It did not keep ...

Squash, roses, deciduous azaleas, asters and phlox are just a few of the many plants that are susceptible to powdery mildew fungus disease. It’s easy to identify because the leaves look like they’re ...