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VERONICA austriaca 'Crater Lake Blue'

Image of Veronica austriaca ssp. teucrium 'Crater Lake Blue'

James H. Schutte

Family

Scrophulariaceae

Botanical Name

VERONICA austriaca ssp. teucrium 'Crater Lake Blue'

Plant Common Name

Broadleaved Speedwell, Crater Lake Blue Speedwell

General Description

Offering a rare and much sought-after color for the garden, the flowers of Veronica austraica subsp. teucrium ‘Crater Lake Blue’ are the most intense, pure, dark blue imaginable. The small but vivid blooms are held in short, open spikes, and appear in late spring atop low-growing mounds of small, dark green, toothed foliage.

Thriving in full sun and reasonably rich, well-drained soil, Veronica ‘Crater Lake Blue’ is somewhat tolerant of drought, but performs best with regular moisture. It may be cut back to the ground in early summer to maintain a neat look and to encourage a flush of fresh, new foliage. ‘Crater Lake Blue’ looks amazing when combined with the spicy, soft pink blooms of Dianthus ‘Bath’s Pink’ and the starry, electric-yellow flowers of Allium moly ‘Jeannine’.

The genus Veronica encompasses a large number of annuals, perennials and sub-shrubs, most of which are native to Europe. Veronica species may be prostrate or upright, and occur in a variety of habitats ranging from moist meadows to dry, rocky alpine areas. Small, narrow to open, lobed, tubular flowers in shades of blue, purple, white or pink are held either singly or in dense to loose, upright spikes. The many forms of Veronica have yielded numerous excellent, garden-worthy cultivars and hybrids.

Characteristics

  • AHS Heat Zone

    8 - 3

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    12"-18" / 30.5cm - 45.7cm

  • Width

    9"-12" / 22.9cm - 30.5cm

  • Bloom Time

    Late Spring

  • Native To

    Europe

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Dark Blue

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Fragrant Flowers

    No

  • 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

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No