Leaf spot is a common fungal disease on black-eyed susans this time of year, but it's too late to do much about it now. Fungicides can head off the problem when applied at the first sign of ...

A: Rudbeckia species, commonly called black-eyed Susans, are prone to several diseases that can cause leaf spots including angular leaf spot (bacterial), Septoria leaf spot (fungal) and powdery ...

Linnaeus named the species in 1753, which is why “Black-Eyed Susans” are also known by their scientific name of Rudbeckia ...

It has the classic black-eyed Susan flower, and the entire plant is attractively dome shaped. Most notable is the ability of “American Gold Rush” to resist Septoria leaf spot.

Now, you could take out some of the Black-Eyed Susans to just remove selectively a little area, and then you’ll have an open area. And the key is to get whatever of those, you know, ... You got to ...

With a long-lasting and distinctive bloom, along with a catchy name that memorably describes the blossom, black-eyed Susans are one of the easier landscape plants to identify. Even novice gardeners ...