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PHLOX drummondii (ASTORIA™ BLUE)

Image of Phlox drummondii 'Sunphloburu' (ASTORIA™ BLUE, ASTORIA™ SERIES) PPAF

Environmental Horticulture Dept. University of Florida

Family

Polemoniaceae

Botanical Name

PHLOX drummondii 'Sunphloburu'( ASTORIA™ BLUE, ASTORIA™ SERIES) PPAF

Plant Common Name

Annual Phlox, Astoria™ Blue Phlox

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

The pretty and easy-to-grow Astoria™ Blue ('Sunphloburu') bears cheerful clusters of pale violet-blue blossoms with deeper purple eyes. Compact in height but spreading its stems horizontally, this small, short-lived annual originates from the Texas native Phlox drummondii. It has great vigor, flowering most consistently in spring and autumn, with a respite in summer's heat.

Small, narrow, lance-shaped leaves adorn the tender stems of annual phlox. Tiny hairs cover the leaves and stems and give the plants a sticky sensation when touched. The flowers appear a few weeks after the seeds germinate. The five-petaled blooms are tubular at the base and flattened and radial at the mouth. Astoria™ Blue phlox's are lavender or light blue-violet with a deep purple center, attracting butterflies and having a light, sweet scent.

Grow annual phlox in full sun and fertile, well-drained garden soil. Plant it outdoors only after the danger of frost has passed. It does not fare well in high heat and is best planted as a winter annual in mild climate zones (hot summers, mild winters) where hard freezes are rare. This phlox offers a pretty show in seasonal annual beds , spilling over container edges or as a groundcover in mixed borders.

Characteristics

  • AHS Heat Zone

    12 - 1

  • Sunset Zone

    A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Annual

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    10"-15" / 25.4cm - 38.1cm

  • Width

    18"-24" / 45.7cm - 61.0cm

  • Bloom Time

    Spring, Late Spring, Early Fall, Fall

  • Native To

    Texas

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Spreading

  • Seasonal Interest

    Spring, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Purple, Lavender, Blue Violet

  • Flower Color Modifier

    Bicolor

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Container, Groundcover, Hanging Basket, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes