a small field of black-eyed susans

america annual backyard bee bees billspenglerphotography black blackeyed butterflies butterfly color colorful coneflower eastern endemic eyed field flowering flowers garden gardening golden goldstrum hirta insect insects michigan native nature north perennial perennials petals phi plants pollen pollination pollinator ratio residential rudbeckia small southeastern spring suburb suburban summer sunflower susan susans sweet wildflower yard yellow flower