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  • Plant varieties and zone information
    From "Garden Sense"
    episode DGAR-311


    (Continued from page 3)

    PHOTO

    Black-Eyed Susan
    Rudbeckia hirta 'Autumn Colors'--Autumn Colors Gloriosa Daisy (Black-Eyed Susan)

    • Annual with 7-inch yellow or bronze daisy-like flowers with maroon-burgundy centers
    • Plant in well-drained soil
    • Plant in full sun
    • Deadhead to promote continued blooming; may reseed
    • Space generously to allow for good air circulation
    • Height: 20-24 inches
    • Width: 12-18 inches

    Annual in all zones (seems to die in fall no matter how warm):

    • Zones 2-8: Plant in spring after danger of frost has passed; collect seed in fall for planting the following spring; discard plants after killing frost.

    • Zones 9-11: Plant in spring or sow seeds in fall when ripe; discard plants in fall.

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    PHOTO

    Bronze Fennel
    Foeniculum vulgare 'Purpurescens'--Bronze Fennel

    • Upright perennial with finely dissected foliage and soft yellow flowers in summer
    • Plant in full sun; divide in spring every few years
    • Plant in average, well-drained soil
    • Deadhead to prevent unwanted seedlings
    • Height: 4-6 feet
    • Width: 1-2 feet

    Hardy in zones 4-9:

    • Zone 4: Plant in spring to prevent winter heaving; plant in full sun; mulch after first hard frost; avoid contact with salt; pull back mulch in spring; plants may be marginally hardy in this zone.

    • Zone 5: Plant in spring to prevent winter heaving; plant in full sun; mulch after first hard frost; avoid contact with salt; pull back mulch in spring.

    • Zone 6: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 7: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 8: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 9: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    PHOTO

    Rue
    Ruta graveolens--Rue

    • Upright perennial with dissected gray foliage and soft yellow flowers in summer
    • Plant in full sun; divide in spring every few years
    • Plant in average, well-drained soil
    • Deadhead to prevent unwanted seedlings
    • Height: 18-24 inches
    • Width: 15-18 inches

    Hardy in zones 6-11:

    • Zone 6: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 7: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 8: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 9: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 10: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    • Zone 11: Plant in spring; plant in full sun; mulch in fall; pull back mulch in spring.

    PHOTO

    Adonis Blue Butterfly Bush
    Butterfly Bushes

    Gardener's Note: All Buddleia davidii are on watch lists for invasiveness and can't be shipped to several western states.

    Buddleia davidii Adonis Blue--Adonis Blue Butterfly Bush

    • Deciduous shrub with gray-green foliage and dark blue spike flowers that attract butterflies
    • Plant in rich, but well-drained soil; prune heavily in very early spring
    • This variety reaches 4 to 5 feet in height and will spread 3 to 4 feet
    • Water regularly until established; fertilize in spring
    • Deadhead to reduce seedlings and prolong blooming
    • Plant in full sun for best flowering

    Hardy in USDA zones 5-9:

    • Zone 5: Plant in spring to prevent winter heaving; plant in full sun; mulch heavily after first hard frost; avoid contact with salt; care for plant as herbaceous perennial and prune to the ground in early spring.

    • Zone 6: Plant in spring or early fall; plant in full sun; mulch in fall; care for plant as a deciduous shrub and prune heavily in late winter.

    • Zone 7: Plant in early fall; plant in full sun; mulch in fall; care for plant as a deciduous shrub and prune heavily in late winter.

    • Zone 8: Plant in early fall; plant in full sun; mulch in fall; care for plant as a deciduous shrub and prune heavily in late winter.

    • Zone 9: Plant in early fall; plant in full sun; mulch in fall; care for plant as a deciduous shrub and prune heavily in late winter.

    Gardening by Zip Code
    If you're looking to start a gardening project but don't know your gardening zone—visit the National Gardening Associations's USDA Hardiness Zone Finder. Enter your Zip Code to identify the proper zone.




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