Black spot disease is a type of fungus that ... will get plenty of sunlight and to try to purchase varieties of roses that ...

They're self-cleaning, meaning these gorgeous rose varieties require ... your roses from harmful black spot disease or powdery mildew, considering they're already resistant. Staying under 2 ...

When it comes to one of the country’s most popular perennial plants, the “big four” vexations are powdery mildew, black spot ... resistant cultivars. “Buy ‘fisherman roses ...