White Cascade Azalea
Evergreen shrub with white flowers in mid to late spring
Plant in organic, slightly acidic soil that is moist, but well drained
Prune right after flowering; fertilize after flowering.
Plant in light to partial shade with protection from the hot afternoon sun
Height: 4 feet; Width: 4 feet
Hardy in USDA zones 5-10:
Zone 5: Plant in spring to prevent winter heaving; plant in light to partial shade; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in spring or early fall; plant in light to partial shade; avoid contact with salt; mulch in fall.
Zone 7: Plant in fall; plant in light to partial shade; provide supplemental water during dry spells, especially in winter; mulch in fall.
Zone 8: Plant in fall; plant in partial shade with protection from hot afternoon sun; provide supplemental water during dry spells, especially in winter; mulch in fall.
Zone 9: Plant in fall; plant in partial shade with protection from hot afternoon sun; provide supplemental water during dry spells, especially in winter; mulch in fall.
Zone 10: Plant in fall; plant in partial shade with protection from hot afternoon sun; provide supplemental water during dry spells, especially in winter; mulch in fall.
Empress Toad Lily
Herbaceous perennial with white orchid-like flowers with purple spots in early fall
Plant in organic soil that is moist, but well drained
Divide as needed in early spring
Plant in light to partial shade with protection from the hot afternoon sun
Height: 30-36 inches; Width: 24 inches, slowly spreading
Hardy in USDA zones 6-9:
Zone 6: Plant in spring; plant in light to partial shade; avoid contact with salt; mulch in fall.
Zone 7: Plant in spring; plant in light to partial shade; mulch in fall.
Zone 8: Plant in spring; plant in light to partial shade; mulch in fall.
Zone 9: Plant in spring; plant in light to partial shade; mulch in fall.
Dwarf Serbian Spruce
Dwarf conical evergreen tree with green needles with silver banding underneath
Plant in full sun to partial shade
Plant in moist, but well-drained soil
Protect from harsh winds and hot sun
Water to establish and then when dry
Height: 4-8 feet; Width: 4-8 feet
Hardy in USDA zones 4-7:
Zone 4: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt; avoid exposure to harsh winter winds.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun to light shade; apply extra mulch after first hard frost; avoid contact with salt; avoid exposure to harsh winter winds.
Zone 6: Plant in spring or early fall; plant in full sun to partial shade avoiding hot afternoon sun; apply extra mulch after first hard frost; avoid exposure to harsh winter winds.
Zone 7: Plant in early fall; plant in light to partial shade avoiding hot afternoon sun; apply extra mulch after first hard frost; avoid exposure to harsh winter winds.
Variegated Maiden Grass
Miscanthus sinensis is a non-native invasive grass from Asia. It has been reported as invasive in natural areas throughout the Midwest and South.
Plant in full sun
Can be invasive
Tolerant of a wide range of soil
Prune back to ground in late winter to early spring; fertilize in spring
Divide every few years in early spring
Height: 4-6 feet Width: 4-6 feet
Hardy in zones (4) 5-9:
Zone 4: Plant in spring; plant in full sun; mulch after first frost to prevent winter heaving; remove mulch in spring; avoid exposure to salt; plant may flop over in heavy snow or ice; may be marginally hardy in this zone.
Zone 5: Plant in spring; plant in full sun; mulch after first frost to prevent winter heaving; remove mulch in spring; avoid exposure to salt; plant may flop over in heavy snow or ice.
Zone 6: Plant in spring; plant in full sun; mulch in fall; remove mulch in spring; plant may flop over in heavy snow or ice.
Zone 7: Plant in spring; plant in full sun; mulch in fall; remove mulch in spring; plant may flop over in heavy snow or ice.
Zone 8: Plant in spring or early fall; plant in full; mulch in fall; remove mulch in spring.
Zone 9: Plant in spring or early fall; plant in full; mulch in fall; remove mulch in spring.
Ornamental Purple Millet
This is a noxious (prohibited) weed in Colorado. It is also listed as invasive by the National Park Service in California and Arizona.
Annual ornamental grass with deep purple foliage and seed heads resembling corn
Plant in rich to average well-drained soil
Plant in full sun
Height: 3-5 feet; Width: 1-2 feet
Annual in all zones:
All Zones: Plant in spring after danger of frost has passed; plant in full sun; water when dry; remove plants after frost.
Garden Mum
Perennial often grown as a fall-blooming annual with flowers in a variety of colors
Plant in rich to average well-drained soil
Plant in full sun to light shade
Pinch back plants by ½ in late spring; divide in spring every 2-3 years
Height: 24 inches; Width: 24 inches
Hardy in USDA zones 5-10:
Zone 5: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 6: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 7: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 8: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 9: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 10: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Garden Mum ‘Janice’
Early fall blooming mum with small yellow flowers
Perennial often grown as a fall-blooming annual with flowers in a variety of colors
Plant in rich to average well-drained soil
Plant in full sun to light shade
Pinch back plants by ½ in late spring; divide in spring every 2-3 years
Height: 24 inches; Width: 24 inches
Hardy in USDA zones 5-10:
Zone 5: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 6: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 7: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 8: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 9: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 10: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Garden Mum ‘Tabitha’
Early fall blooming mum with burgundy and rust colored flowers
Perennial often grown as a fall-blooming annual with flowers in a variety of colors
Plant in rich to average well-drained soil
Plant in full sun to light shade
Pinch back plants by ½ in late spring; divide in spring every 2-3 years
Height: 24 inches; Width: 24 inches
Hardy in USDA zones 5-10:
Zone 5: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 6: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 7: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 8: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 9: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 10: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Garden Mum ‘Garden Spotlight’
Early fall blooming mum with cool yellow flowers with red centers
Perennial often grown as a fall-blooming annual with flowers in a variety of colors
Plant in rich to average well-drained soil
Plant in full sun to light shade
Pinch back plants by ½ in late spring; divide in spring every 2-3 years
Height: 24 inches; Width: 24 inches
Hardy in USDA zones 5-10:
Zone 5: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 6: Plant in early fall; plant in full sun to light shade; mulch after planting; avoid contact with salt.
Zone 7: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 8: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 9: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Zone 10: Plant in early fall; plant in full sun to light shade; provide supplemental water during dry spells.
Aster
The genus Aster has undergone a name change and is now Symphyotrichum.
Native, fall-blooming perennial with daisy-like flowers in a variety of colors.
Plant in full sun to partial shade; flowering is better in full sun
Plant in moist to average garden soil that is high in organic matter
Height: 2-3 feet; Width: 2-3 feet
Hardy in zones 4-8:
Zone 4: Plant in spring to prevent winter heaving; plant in full sun to light shade; mulch after first hard frost; avoid contact with salt; water when dry.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun to light shade; mulch after first hard frost; avoid contact with salt; water when dry.
Zone 6: Plant in spring or early fall; plant in full sun to light shade; mulch in fall; water when dry.
Zone 7: Plant in fall; plant in full sun to partial shade; mulch in fall; water when dry.
Zone 8: Plant in fall; plant in full sun to partial shade; mulch in fall; water when dry.
Ornamental Kale and Cabbage
Cool season annual grown for its colorful foliage ranging from white to pink, purple and red
Plant in well-drained soil
Plant in full sun
Space generously to allow for good air circulation
Height: 6-12 inches; Width: 12-18 inches
Annual in all zones:
Cold tolerant to 5 degrees
Will survive the winter in zones 7-9
Zones 2-6: Plant in early fall; plant in full sun; mulch after planting; water when dry; remove after damage from severe frost (below 5 degrees); in warm winters, remove in spring as weather warms and plants begin to look tired.
Zones 7-9: Plant in early fall; plant in full sun; mulch after planting; water when dry; remove if damaged by severe frost (below 5 degrees); remove in spring as weather warms and plants begin to look tired.
Ornamental Chard
Warm season annual grown for its edible colorful foliage ranging from white to pink, purple and red
Plant in well-drained soil
Plant in full sun
Grown as an annual in all zones
Height: 12 inches; Width: 12-18 inches
Will survive the winter in USDA zones 8b-10:
Zones 2-8a: Plant in spring; plant in full sun; mulch after planting; water when dry; remove after damage from frost.
Zones 8b-10: Plant in early fall; plant in full sun; mulch after planting; water when dry; remove if damaged by frost; remove in spring as weather warms and plants begin to look tired.
Ornamental Peppers
Warm season annual grown for its edible colorful 6-inch peppers in red and purple
Plant in rich, well-drained soil
Plant in full sun
Grown as an annual in all zones
Height: 24-30 inches; Width: 12-18 inches
Winter hardy in USDA zones 9-11:
Zones 2-8: Plant in spring; plant in full sun; mulch after planting; water when dry; remove after damage from frost.
Zones 9-11: Plant in early fall; plant in full sun; mulch after planting; water when dry; remove if damaged by frost; remove in spring as weather warms and plants begin to look tired.
Heavy Metal Switch Grass
Medium ornamental grass with metallic blue foliage that has stiff, upright appearance
Pink flowers in fall
Plant in full sun
Plant in rich, but well-drained soil
Prune back to ground in late winter to early spring; fertilize in spring
Divide every few years in early spring
Height: 4-5 feet Width: 2-3 feet
Hardy in zones (4)5-9:
Zone 4: Plant in spring; plant in full sun; mulch after first frost to prevent winter heaving; remove mulch in spring; avoid exposure to salt; plant may flop over in heavy snow or ice; may be marginally hardy in zone 4a.
Zone 5: Plant in spring; plant in full sun; mulch after first frost to prevent winter heaving; remove mulch in spring; avoid exposure to salt; plant may flop over in heavy snow or ice.
Zone 6: Plant in spring; plant in full sun; mulch in fall; remove mulch in spring; plant may flop over in heavy snow or ice.
Zone 7: Plant in spring; plant in full sun to light shade; mulch in fall; remove mulch in spring; plant may flop over in heavy snow or ice.
Zone 8: Plant in spring or early fall; plant in full sun to light shade; mulch in fall; remove mulch in spring.
Zone 9: Plant in spring or early fall; plant in full sun to light shade; mulch in fall; remove mulch in spring.
SOURCE:http://www.diynetwork.com/how-to/outdoors/gardening/more-plant-variety