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TRACHELIUM caeruleum (DEVOTION SERIES)

Image of Trachelium caeruleum (DEVOTION SERIES)

James H. Schutte

Family

Campanulaceae

Botanical Name

TRACHELIUM caeruleum( DEVOTION SERIES)

Plant Common Name

Blue Throatwort

General Description

Offering a summer-long succession of frilly flower heads on compact plants, the Devotion Series comprises several seed-grown cultivars of the Mediterranean native Trachelium caeruleum. These tender perennials bear flat clusters of small starry blue, purple, white, or burgundy flowers on knee-high stalks from late spring through summer. The somewhat shrubby plants have paired, oval, mid-green leaves. Plants bloom 4 months after sowing, making them useful as seed-grown annuals. They also often self-sow.

Give these plants full to partial sun and well-drained soil. Where hardy, use them in perennial beds and cottage gardens. They make excellent annuals for gardens in colder regions, and also work well in containers. Deadhead to encourage continued bloom and prevent self-sowing. The flowers are good for cutting and for attracting bees and butterflies.

Characteristics

  • AHS Heat Zone

    12 - 1

  • USDA Hardiness Zone

    9 - 13

  • Sunset Zone

    7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tender Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    18"-30" / 45.7cm - 76.2cm

  • Width

    12"-15" / 30.5cm - 38.1cm

  • Bloom Time

    Late Spring, Early Summer, Summer, Late Summer

  • Native To

    Mediterranean

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring, Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Blue, Purple, Burgundy

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Fragrant Flowers

    No

  • 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

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Cutflower, Mixed Border, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes