The upright stems of Abutilon 'Biltmore Ballgown' are festooned with dangling two-inch orange bells streaked with scarlet throughout summer.

Abutilon megapotamicum will bloom constantly from spring until fall with bright yellow and red pendulous lanterns.

Arbutus menziesii is an attractive evergreen tree with peeling red/brown bark, clusters of fragrant white or pink flowers and edible scarlet fruit.

Buddleia 'Birthday Cake' is a butterfly bush with upright, fragrant purple flowers that bloom from summer into fall.

Buddleia 'Blueberry Pie' is a compact butterfly bush with fragrant blue-purple flowers with white and yellow centres.

Buddleja 'Buzz Hot Raspberry' is a dwarf, sterile butterfly bush that blooms continuously with fragrant, hot-raspberry-pink flowers.

Buddleia 'Miss Molly' is the reddest of all butterfly bushes with fragrant, glowing magenta flowers all summer long.

Buddleja Buzz 'Sky Blue' is a dwarf butterfly bush that blooms from summer to fall with fragrant, lavender-blue flowers.

Buddleia 'Lilac Cascade' is a mid-sized, long-blooming, sterile butterfly bush with huge cones of fragrant lilac flowers.

Buddleia 'Pink Cascade II' is a mid-sized, long-blooming, sterile butterfly bush with huge cones of fragrant, pink flowers.

Buddleja 'Dartmoor' has giant clusters of warm purple flowers that dwarf all other cultivars.

Buddleja Monarch 'Prince Charming' is a mid-sized, long-blooming butterfly bush with huge cones of fragrant, raspberry-pink flowers.

Carpenteria californica 'Elizabeth' offers open clusters of ruffled white flowers centred with spheres of yellow stamens.

Caryopteris x clandonensis 'Beekeeper' is a compact bluebeard with blue flowers and golden-green foliage.

Chionanthus virginicus, known as the fringe tree, is a unique shrub or small tree with unique fragrant white flowers.

Clethra alnifolia 'Hummingbird' is a compact shrub with white bottlebrush flowers that are fragrant and nectar-rich.

Clethra alnifolia 'Ruby Spice' is a compact shrub with pink and white bottlebrush flowers that are fragrant and nectar-rich.

Clethra alnifolia 'Summer Sparkler' is a compact shrub with long, twisting racemes of white flowers that are fragrant and nectar-rich.

Cornus kousa var. chinensis, the Chinese dogwood, has creamy white spring flowers and spectacular fall foliage.

Cornus wilsoniana or ghost dogwood has clusters of small white flowers that bloom in spring and beautiful mottled bark.

Daphne 'Perfume Princess White' is an amazing hybrid with an extremely long bloom period of intensely sweet, citrusy fragrance.

Daphne 'Perfume Princess' is an amazing hybrid with an extremely long bloom period of intensely sweet, citrusy fragrance.

Mae-Jima' is an extra variegated version of Daphne odora 'Aureomarginata' with much broader yellow margins.

Daphne 'Eternal Fragrance' has sweet, tropical, baby powder perfume and constant bloom from April to November.

Deutzia 'Yuki Cherry Blossom' is a fuzzy deutzia shrub with pink cherry-blossom-like flowers and green foliage with fall colours.

Deutzia 'Yuki Snowflake' is a fuzzy deutzia shrub with white, cherry-blossom-like flowers and green foliage with fall colours.

Ensete glaucum is a rare snow banana and a Musa relative with large, paddle-shaped leaves. Zone 7b hardy with protection.

Eucalyptus pulverulenta 'Baby Blue' is the wonderful silver dollar of florist shops with baby blue foliage and great fragrance.

Euphorbia schillingii is a deciduous spurge with long-lasting bright yellow flowers and long green leaves with white stripes.

Euphorbia 'Ascot Rainblow' is a multi-variegated spurge with colours of sage green, gold, lime, and red.