Aronia arbutifolia (Red chokeberry)

This upright, suckering shrub bears creamy white, deliciously spicy clove-scented flowers in dense, upright spikes that last four to six weeks in July and August. It is more compact than the species. Flowers mature to spikes of dark brown capsules that provide winter interest. Its oval, glossy dark green leaves turn a pleasant yellow in autumn.

A member of the conifer clan, Ephedra equisetina is commonly called bluestem joint fir due to its finely textured blue stems. In spring, it features a conspicuous froth of yellow blooms that are often followed by red berries. It is perfect for naturalized areas since it reliably spreads.

This variety has single, papery white blossoms that open from light pink buds and have contrasting yellow stamens. The heavily-scented flowers are followed by reddish-orange hips. It grows up to 6 feet high.

'Henry Hudson' has flattened, symmetrical, semi-double, white flowers with a spicy clove scent. The dense and deep green foliage makes a fitting backdrop for this selection's reddish buds and ensuing cream-colored flowers. The blossoms don't drop cleanly, so deadheading is necessary.