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Phlox divaricata ssp. laphamii

Image of Phlox divaricata ssp. laphamii

James H. Schutte

Family

Polemoniaceae

Botanical Name

Phlox divaricata ssp. laphamii

Plant Common Name

Wild Blue Phlox, Woodland Phlox

General Description

Wild blue phlox is a low spring-blooming herbaceous perennial from eastern and central North America. It bears clouds of starry blue or white flowers on upright or splayed stems. The flowers are often sweetly fragrant. Occuring in the western part of woodland phlox's native range, the subspecies laphamii bears flowers that lack the notched petal tips typical of other forms. Plants creep slowly to form clumps of oval semi-evergreen leaves. Self-sowing often occurs if plants are not deadheaded. This variety has given rise to several cultivars including the hybrid 'Chattahoochee.'

Wild blue phlox thrives in moist fertile well drained soil and partial shade. Its clouds of spring blooms and creeping habit make this an excellent plant for naturalizing in woodland gardens.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17

  • Plant Type

    Perennial

  • Sun Exposure

    Partial Sun, Partial Shade

  • Height

    12"-14" / 30.5cm - 35.6cm

  • Width

    12"-18" / 30.5cm - 45.7cm

  • Bloom Time

    Spring

  • Native To

    Central United States, Canada

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Mat-forming

  • Seasonal Interest

    Spring

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Blue, Light Blue

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Mixed Border, Rock Garden / Wall, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes