White, hard growth on plants, fungus??

Asked August 13, 2018, 7:14 PM EDT

What's on my hydrangea?

Howard County Maryland disease issues shrubs

1 Response

This looks like a root rot fungus, possibly Armillaria. Unfortunately, there is no remedy for this once a shrub has become infected. https://extension.umd.edu/hgic/root-rots-trees-and-shrubs

ckc