The Nippon daisy (Nipponanthemum nipponicum), also referred to as the Montauk daisy, is an herbaceous perennial flower that starts blooming in the late summer and persists until frost. It can grow as tall as 3 feet and will reach its full size within roughly two months.

Why arent my Montauk daisies blooming?

Temperatures – High temperatures can stress the plant and slow blooming until the weather moderates. On the other hand, a late freeze can nip the buds and prevent blooms for the coming season. Unfortunately, there's not much gardeners can do about temperature fluctuations, but a layer of mulch may help.

When should I prune Nippon daisy?

Plants have a tendency to flop if left unpruned for the entire growing season. You'll make the most of the fall flower show by pruning faithfully in spring through midsummer. For a strong fall bloom, prune plants to about 6 inches tall in early spring, with a second strong pruning in July.