New England Aster

Growing New England Aster

Pinch by half in early June for a bushier, self-supporting plant. Critical nectar in October when little else is blooming.

Where it belongs

New England aster is native across the Northeast, the Midwest, and well beyond its name, growing in moist meadows, damp field edges, and roadside ditches. It prefers ground that holds a little more moisture than most prairie species want.

Its value is almost entirely about timing. It flowers in September and October, which is when monarchs are moving south and need fuel, and when bumblebee queens are building reserves before overwintering. A garden with nothing in flower in October is a garden that stops feeding insects at the moment they most need it.

Growing it

Full sun, average to moist soil. It tolerates clay well and is one of the better choices for a heavy site that stays damp in spring.

It gets tall, four to six feet, and in rich soil it flops and goes bare at the base. Two standard answers, both real: cut every stem back by about a third in late spring or early summer, which produces a shorter bushier plant that flowers slightly later, or plant it behind something that hides its legs. Grasses do this job well and hold it upright at the same time.

Powdery mildew on the lower leaves is common in humid summers and is cosmetic. Air movement helps; crowding makes it worse.

What it feeds

Late-season nectar for monarchs, other butterflies, and bumblebees, plus a long list of native bees. Asters as a genus support a large number of specialist bees that collect pollen from them and little else, which is a real conservation argument for planting them rather than a general one.

Seed feeds finches and sparrows through winter.

Living with it

It spreads slowly by rhizome into a wider clump and self-sows modestly. Divide every few years if the center opens up, or leave it alone in a meadow setting.

Leave the stems through winter. The hollow ones shelter insects, and cutting in autumn removes the seed just as the birds start on it.

Sources: USDA PLANTS Database (native status and range); Xerces Society for Invertebrate Conservation (late-season nectar and specialist bees); Mt. Cuba Center (aster trial results on garden performance and mildew resistance).

It’s showy, easy to grow, and long-blooming.

Where it grows

New England Aster is native to the Northeast. In the wild you’ll find it across Alabama · Arkansas · Colorado · Connecticut · Delaware · Florida · Georgia · Illinois · Indiana · Iowa and 32 more states. Always confirm it suits your specific county with your state native plant society before planting.

Regional Garden has written state guides covering New England Aster in 42 of them so far.

Good for