4.3/5 (337 Views . Rather than the low growing, hairy, oblong leaves of Black-eyed Susan, Cutleaf Coneflower has smooth pinnately lobed leaves with serrated edges. On its short list of merits, Black-eyed Susan is a low-maintenance workhorse of a plant that's tolerant of heat, drought and even deer. Similar Images . Additional Notes. Purple coneflowers may occasionally experience damage from Japanese beetles or leaf spot. Black-eyed Susans aren't generally susceptible to pests or diseases. Add to Likebox ... #110898328 - Field of black and white black eyed susans with one yellow. Rabbits nip … 4 6 0. Purple coneflowers are attractive in partially shaded woodland gardens, while black-eyed Susans add bright color to cottage gardens. Rudbeckia species have an average growth rate and prefer full sun (greater than 6 hours of direct sunlight) but will tolerate partial shade. Belonging to the aster family (Asteraceae), black eyed Susan is a perennial wildflower native to North America. - yellow bumps w purple. Three grams of Xylitol can kill a 65-pound dog. 10 4 1. Leaves may appear thick and leathery. Q. Mike: I have purplish leaf spots on my perennial rudbeckia. They didn't get as tall and the flowers didn't get as big. Black-Eyed Susan is a stiff, moderately fast growing, upright branching biennial or short-lived perennial that is native to the eastern United States but has become endemic throughout North America. I've noticed dimples or bumps all over leaves, even down stems, on my rudebeckia that's obviously sucking the life out of the leaf showing purple damage streaking through the veins. Feeding damage from some species causes small white spots (stippling) to appear on the upper leaf surface, usually beginning near the leaf midrib. Rudbeckia Hirta. Stalk Stem. In dogs the product quickly lowers blood sugar levels and can cause severe liver damage in a 24-hour period of time. The name black-eyed Susan is an epithet of the flower’s signature dark brown center, hence the “black-eyed” reference. Leaves are twisted, cupped, or distorted. However, there’s more to it than its blooms’ black cores (or so-called eyes). The leaves are still clump forming but form an almost bush-like shape. Also with a Black-eyed Susan, the leaves weren't cupped, but deformed and scarred. Side of the plant closest to the herbicide application is most severely affected. It may also be dangerous to cats, dogs and other household pets. Both purple coneflowers and black-eyed Susans make colorful, low-maintenance additions to native gardens, borders, perennial beds or naturalized areas. Black Eyed Susan. They tend to chew leaves from their outer edges and may devour a young plant right down to the stem and a few of the tougher leaf mid ribs. This flower should also be kept away from small children, who may chew it or get the sap on their skin.they are poisonous to most Next year you could check for evidence of rabbits: look for tracks, droppings and bite marks on your flower. I noticed the leaves turning black. 5 6 1. Welcome to the Krostrade Marketplace, please excuse our appearance, we are still under construction. Black Eyed Susan. I've had Black-eyed Susan's along the side of my house for years; and about three years ago. That is about 8 to 12 sticks of gum in a medium to large breed dog and about 2 to 5 sticks in a smaller dog. Hello! Do Black Eyed Susan Come Back Every Year. However, in recent years, a “new” disease seems to be spreading into Goldsturm plantings. Nevertheless, who was Susan? The downy growth results from the production of spores called sporangia which are wind-dispersed between plants. 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