Flowers and Grasses

Learn about several plant varieties and the planting information for each zone.

McKana Giant Columbine

columbine noted for its unusual flowers

Short-lived perennial noted for its unusual flowers in a variety of colors

Plant in full sun to partial shade
Plant in average to moist soil
Plants reseed easily
Susceptible to leaf miners, which can be controlled by removing damaged leaves
Height: 30-36 inches; Width: 12-15 inches

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.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in spring; plant in full sun to partial shade; avoid contact with salt.
Zone 7: Plant in spring; plant in full sun to partial shade; provide supplemental water during dry spells.

Asparagus Fern

asparagus fern is grown as houseplant

This is a Class A non-native invasive in frost-free areas such as Florida, the extreme Southern Gulf Coast and perhaps the West Coast. Do not plant in the landscape in these areas. We used this fern in a container.

Tender perennial, grown as a houseplant for its fine fern-like foliage and arching stems
Plant in rich, moist but well-drained soil
Plant in light to partial shade
Height: 2-3 feet; Width: 3-4 feet

Annual in zones 2-8
Hardy in USDA zones 9-11:

Zones 2-8: Plant outside or in containers after danger of frost has passed; plant in light shade with protection from hot afternoon sun; water freely during growing season; prune when needed; fertilize monthly while outdoors; bring indoors before first frost.
Zones 9-11: Plant in spring; plant in light to partial shade with protection from hot afternoon sun; provide supplemental water during dry spells; may be invasive.

Purple Heart Plant

purple heart plant known for deep purple foliage

Tender perennial groundcover known for its deep purple foliage and three-petaled pink flowers

Plant in full sun to partial shade; color is better in full sun
Plant in moist but well-drained, rich soil
Fertilize in spring
Height: to 8 inches; Width: to 18 inches

Hardy in USDA zones: 8-11
Zones 2-7: Plant in spring after danger of frost has passed; plant in full sun; plant in moist, well-drained soil; bring indoors before frost.
Zone 8: Plant in spring after danger of frost has passed; plant in full sun to light shade; plant in moist, well-drained soil; mulch in fall; remove dead foliage in the fall.
Zone 9: Plant in spring; plant in full sun to partial shade; plant in moist, well-drained soil; mulch in fall; remove dead foliage in the fall.
Zone 10: Plant in spring; plant in full sun to partial shade; plant in moist, well-drained soil; mulch in fall; remove dead foliage in the fall.
Zone 11: Plant in spring; plant in full sun to partial shade; plant in moist, well-drained soil; mulch in fall; remove any dead foliage in the fall.

Gopher Spurge

gopher spurge is hardy biennial

Hardy biennial with leather-like lance shaped blue-green leaves and yellow flowers

Plant in full sun
Plant in rich but well-drained, drought tolerant
All parts of the plant are poisonous and the milky sap can be irritating
Reseeds prolifically and can be invasive if not deadheaded
Height: 24-36 inches; Width: 24-36 inches

Hardy in USDA zones: 5-8
Zones 2-4: Grow as an annual; plant in spring after danger of frost has passed; plant in full sun; plant in well-drained soil.
Zone 5: Plant in spring after danger of frost has passed; plant in full sun; plant in well-drained soil; mulch in fall; collect seed in fall for spring sowing.
Zone 6: Plant in spring after danger of frost has passed; plant in full sun; plant in well-drained soil; mulch in fall; collect seed in fall for spring sowing.
Zone 7: Plant in spring after danger of frost has passed; plant in full sun; plant in well-drained soil; mulch in fall; collect seed in fall for spring sowing.
Zone 8: Plant in spring; plant in full sun; plant in well-drained soil; mulch in fall; collect seed in fall for spring sowing.

Bridalwreath Spirea

bridalwreath spirea has white flowers in spring

Deciduous shrub with dark green leaves and white flowers in mid to late spring

Arching branches
Plant in rich, moist, but-well drained soil
Plant in full sun to light shade
Prune as needed while dormant in winter; fertilize in spring
Height: 4-9 feet; Width: 6-8 feet

Hardy in USDA zones 4-8(9):
Zone 4: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in fall or early spring; plant in full sun to light shade.
Zone 7: Plant in fall; plant in full sun to light shade.
Zone 8: Plant in fall; plant in full sun to light shade.
Zone 9: Plant in fall; plant in full sun to light shade; may struggle in warmer areas of this zone.

Creeping Phlox

creeping phlox is creeping evergreen groundcover

Creeping evergreen groundcover with needle-like leaves and blue flowers in spring

Plant in rich, moist, but-well drained soil
Plant in full sun to light shade
Prune as needed while dormant in winter; fertilize in spring
Height: 3-6 inches; Width: 24-36 inches, spreading

Hardy in USDA zones (3)4-8:
Zone 3: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt; may be marginally hardy in this zone if not protected.
Zone 4: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in early spring; plant in full sun to light shade
Zone 7: Plant in early spring; plant in full sun to light shade.
Zone 8: Plant in early spring; plant in full sun to light shade.

Spider Flower

Spider Flower has spider like foliage

Tall annuals with spider-like foliage and blossoms also resembling cat's whiskers

Stems have tiny sharp thorns
Plant in rich, moist, but-well drained soil
Plant in full sun
Heat and drought tolerant
Plants reseed; deadhead to control self-sowing
Height: 36-48 inches; Width: 18-24 inches

Annual in all zones:
All zones: Plant seeds or plants in spring after danger of frost has passed; plant in full sun; water until established; collect seed in late summer or fall.

Rose of Sharon/Althea

rose of sharon has pink to purple blooms in summer

Showing tendencies for invasiveness in the South, Mid-Atlantic and Northeast regions of the country

Deciduous shrub with pink to purple blooms in summer
Height: 8-10 feet; Width: up to 8 feet
Tolerant of most soil and drought once established
Avoid excessive fertilizer, which may reduce blooms
Potentially invasive; watch for unwanted seedlings
Plant in full sun; prune while dormant in winter

Hardy in USDA zones 5-8(9):
Zone 5: Plant in spring; apply additional mulch after first hard frost; plant in full sun; avoid contact with salt; water regularly in dry spells during first growing season.
Zone 6: Plant in spring or early fall; apply additional mulch after first hard frost; plant in full sun; water regularly in dry spells during first growing season.
Zone 7: Plant in spring or early fall; apply additional mulch after first hard frost; plant in full sun; water regularly in dry spells during first growing season.
Zone 8: Plant in early fall; apply additional mulch in fall; plant in full sun; water regularly in dry spells during first growing season.

Hardy Geraniums

hardy geraniums are grown for its palmate foliage

Hardy perennial grown for its palmate foliage and bright magenta cup-like flowers in summer

Plant in rich, moist, but well-drained soil
Plant in full sun to light shade
Divide in spring as needed
Height: 12-18 inches; Width: 18-24 inches

Hardy in USDA zones (4)5-8:
Zone 4: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt; may be marginally hardy in this zone if not protected.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in spring; plant in full sun to light shade; apply extra mulch after first hard frost.
Zone 7: Plant in spring; plant in full sun to light shade; apply extra mulch after first hard frost.
Zone 8: Plant in spring; plant in full sun to light shade.

Splish Splash Geranium

Hardy perennial grown for its palmate foliage and white flowers streaked with blue in summer
Plant in rich, moist, but well-drained soil
Plant in full sun to light shade
Divide in spring as needed
Height: 24-30 inches; Width: 24-30 inches

Hardy in USDA zones (4)5-8:
Zone 4: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt; may be marginally hardy in this zone if not protected.
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch after first hard frost; avoid contact with salt.
Zone 6: Plant in spring; plant in full sun to light shade; apply extra mulch after first hard frost.
Zone 7: Plant in spring; plant in full sun to light shade; apply extra mulch after first hard frost.
Zone 8: Plant in spring; plant in full sun to light shade.

Climbing Rose

climbing bourbon rose fragrant pink blooms

Like many roses it may develop black spot, and it is sometimes susceptible to powdery mildew.

Climbing Bourbon rose with semi-double fragrant pink blooms; repeat bloomer
Noted for being the most shade tolerant rose with very few thorns
Plant in rich, moist, but well-drained soil; fertilize monthly during growing season
Plant in full sun to partial shade
Prune after spring flush, removing oldest canes
Height: 10-15 feet; Width: 2-3 feet

Hardy in USDA zones 5-9:
Zone 5: Plant in spring to prevent winter heaving; plant in full sun; apply extra mulch over crown before the first hard frost; avoid contact with salt; remove mulch in spring.
Zone 6: Plant in spring; plant in full sun to light shade; apply extra mulch before the first hard frost; remove mulch in spring.
Zone 7: Plant in spring; plant in full sun to partial shade shade; apply extra mulch in fall.
Zone 8: Plant in spring; plant in full sun to partial shade.

Tricolor Sage

tricolor sage is perennial evergreen herb

Perennial evergreen herb with tricolored leaves of gray-green, cream and pink with violet flowers in summer

Good heat tolerance
Plant in full sun
Plant in average, but sharply drained soil
Divide every few years in early spring
Height: 24-30 inches; Width: 24-30 inches

Hardy in USDA zones (6)7-8:
Zone 6: Plant in spring after danger of frost has passed; mulch for protection; plant in full sun; water when dry; may be marginally hardy or deciduous in this zone.
Zone 7: Plant in spring after danger of frost has passed; plant in full sun; water when dry.
Zone 8: Plant in spring after danger of frost has passed; plant in full sun; water when dry.

Dwarf Sweet William

dwarf sweet william has profuse flowers in summer

Mounding perennial with profuse bright red, pink and white flowers in summer

Good heat tolerance
Plant in full sun to light shade
Plant in rich, but well-drained soil; fertilize monthly; water when dry
Divide every few years in early spring; deadhead to prolong blooming
Height: 6 inches; Width: 8-12 inches

Hardy in USDA zones 3-9:
Zone 3: Plant in spring after danger of frost has passed; avoid contact with salt; mulch lightly for protection; plant in full sun; water when dry; may be marginally hardy in this zone if not protected.
Zone 4: Plant in spring after danger of frost has passed; avoid contact with salt; mulch lightly for protection; plant in full sun; water when dry.
Zone 5: Plant in spring after danger of frost has passed; avoid contact with salt; mulch lightly for protection; plant in full sun; water when dry.
Zone 6: Plant in spring after danger of frost has passed; mulch lightly for protection; plant in full sun; water when dry.
Zone 7: Plant in spring after danger of frost has passed; plant in full sun; water when dry.
Zone 8: Plant in spring; plant in full sun; water when dry.
Zone 9: Plant in spring; plant in full sun; water when dry.

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