HORTICULTURE — Plant Asters for Fall Color

New England aster (Photo by Mary Jane Frogge, Nebraska Extension in Lancaster County)
New England aster (Photo by Mary Jane Frogge, Nebraska Extension in Lancaster County)

By Mary Jane Frogge, Extension Associate, Lancaster County

Asters are hardy perennials that bloom late summer until the first hard frost. Many asters are native to Nebraska and are a late-season source of pollen for bees, migrating monarchs and other pollinators.

Asters native to Nebraska include:
• Smooth aster, 2–4 feet tall with purple flowers
• Prairie aster, 3–4 feet tall with lavender flowers
• Heath aster, 1–3 feet tall with white flowers
• New England aster, 3–5 feet tall with pink, red-violet, purple or blue flowers

Asters are easy to grow and look great in a mass planting. They can be planted with other native plants like purple coneflower, coreopsis, black-eyed Susan and native grasses.

The main plant disease is powdery mildew, it causes a whitish growth that appears on leaves. To reduce the chance of this disease, make sure asters are in full sun and plants are not crowded.