Go Back Jackmanii Clematis

Posted: May 7, 2019 at 4:08 PM
Clematis 'Jackmanii'
    Deer Resistant IconHummingbird Icon

    Plant Type: Clematis

    A large flowered variety, blooms measure 5-6" in diameter. Solid deep purple flowers with prominent, creamy yellow stamens. Blooms profusely from June to October. A long-time favorite due to its vigorous growth habit and consistent flowering ability. Beautiful when grown through ivy up a wall or fence.

    A member of:
    Group 3+Late flowering cultivars

    Though their growth habit makes them difficult to prune, it can be done in late winter or early spring. All shoots can be cut back to the previous year's wood, just above the base of the plant. This pruning is necessary to avoid getting a bare stem with a thick tangle above it. The spring flowers will be eliminated for that year, but the late summer flowers should still be produced. Alternatively, if you don't want to cut the entire plant back all at once, pruning can be done in stages over a period of 3 years. Each year, prune back 1/3 of the stems to 6-9 inches above a couple of well-developed buds.

    Currently not available for online purchase.

    Growing & Maintenance Tips:

    Clematis can be grown in full sun or light shade, but its base and roots must be completely shaded. You may need to plant a small shrub or large perennial directly in front of its rootball to keep it cool and shaded. Though their growth habit makes them difficult to prune, it can be done in late winter or early spring. All shoots can be cut back to the previous year's wood, just above the base of the plant. This pruning is necessary to avoid getting a bare stem with a thick tangle above it. The spring flowers will be eliminated for that year, but the late summer flowers should still be produced. Alternatively, if you don't want to cut the entire plant back all at once, pruning can be done in stages over a period of 3 years. Each year, prune back 1/3 of the stems to 6-9 inches above a couple of well-developed buds.

    Flower Color

    Deep purple with creamy stamens

    Foliage Color

    Green

    Plant Spread

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    Good Companions

    Aster-New York (Aster dumosus), Bee Balm (Monarda ), Black-Eyed Susan (Rudbeckia fulgida), Coneflower-Purple (Echinacea purpurea), Iris-Tall Bearded (Iris ), Phlox-Tall Garden (Phlox paniculata), Rose Mallow (Hibiscus ), Shasta Daisy (Leucanthemum superbum), Speedwell-Spike (Veronica spicata)

    Plant Height

    8-12 ft.

    Scape Height

    —

    Hardness Zone

    4-8

    Soil Moisture

    Average water needs

    Characteristics & Attributes

    Attributes

    Climbing, Cut flower or foliage, Border, Specimen

    Bloom Time

    June to October

    Critter Resistance

    Deer and rabbit resistant

    Exposure

    Full sun to part shade

    Growth Rate

    Medium

    Seasonal Interests

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