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DIASCIA (WHISPER™ SALMON RED)

Image of Diascia 'Balwhisalim' (WHISPER™ SALMON RED, WHISPER™ SERIES) PP14499

Jesse Saylor

Family

Scrophulariaceae

Botanical Name

DIASCIA 'Balwhisalim'( WHISPER™ SALMON RED, WHISPER™ SERIES) PP14499

Plant Common Name

Twinspur, Whisper™ Salmon Red Improved Twinspur

General Description

The colorful twinspur Whisper™ Salmon Red has a mounding, spreading habit and large rosy salmon flowers. It was introduced by Ball Horticultural Company and is commonly grown as a bedding annual but survives as an evergreen perennial where hardy.

This fine, herbaceous plant has wiry stems and small heart-shaped leaves. Its delicate, colorful flowers appear all season. Each small bloom is tubular with a prominent lip and two rear spurs, or nectaries, which hold nectar for bees and butterflies. Hummingbirds have even been known to visit them.

Grow twinspur in full to partial sun and porous, friable, humus-rich soil with an acid to neutral pH. It performs best where summers are cooler and needs constant moisture when grown in containers, particularly if placed in exposed sites. In very hot months flowering may cease but will resume when temperature cool in fall autumn. Trim back plants after blooming wanes to encourage fresh growth and heavy flowering.

Twinspurs are small and tend to trail, so they are ideal for pots, hanging baskets, window boxes or border edges. Treat them as a cool-season annual plant where tender or in the off season where summers are hot and winters mild.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    8 - 9

  • Sunset Zone

    H1, 4, 5, 6, 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

    10"-14" / 25.4cm - 35.6cm

  • Width

    15"-22" / 38.1cm - 55.9cm

  • Bloom Time

    Indeterminate

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Cushion/Mound-forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Red, Salmon

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    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

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Container, Hanging Basket, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes