Passiflora caerulea (Blue passion flower)

(7 user reviews)

This deciduous, late-flowering twining vine with deep green leaves and profuse, fragrant white flowers is easy to grow and will thrive and bloom in shade. Star-shaped blossoms are 1 inch across, appearing from late August to October and maturing to attractive, plume-like seed heads. The shiny green foliage is leathery.

This North American native vine boasts abundant clusters of pale lilac-purple flowers. Though it is not as fragrant as Asian wisterias, it is easier to control because it doesn't send out long root suckers. American wisteria blooms later, from June to August, so its blossoms are less prone to being killed by a late frost. It can grow to 30 feet or more when trained to climb over an arbor, pergola, or wall. It can also be trained into a small tree or standard. 'Nivea' is a white-flowered form.

A deciduous climber native to the southeastern United States, Clematis crispa bears lavender-blue, bell-shaped flowers with curly edges in summer. Its blooms are not profuse, but their elegant shape makes this plant a good choice for trellises, growing through shrubs, or planting in damp areas. The flowers are slightly fragrant and are followed by attractive seedheads. It also makes an unusual cut flower.

(1 user review)

Downy clematis is a hardy, deciduous early bloomer that can flourish in Zone 4. The species will climb to 10 feet with a little support, and it has bell-shaped, purple-blue, almost columbine-like flowers about 1 to 2 inches, sometimes up to 4 inches in diameter, that mature to fluffy, pinkish seed heads. Blooms appear in spring and early summer, sometimes followed by a second flush in late summer to early autumn