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CONVOLVULUS sabatius

Image of Convolvulus sabatius

Michael Charters, www.calflora.net

Family

Convolvulaceae

Botanical Name

CONVOLVULUS sabatius

Plant Common Name

Blue Rock Bindweed, Ground Morning Glory

General Description

Beautiful purplish blue or pink morning glory flowers cover this trailing perennial subshrub in the heat of summer. Ground morning glory is native to the Mediterranean regions of North Africa and Italy where it naturally grows along rocky, limestone cliff faces and ground along the seaside. Its tough natural environment enables it to withstand difficult garden spots with hot sun, drought, wind, salt-spray and alkaline soils.

This low, ground-hugging plant is fully evergreen where hardy. Its small, oval leaves thickly line the stems and may be dark green or gray-green. The pretty funnel-shaped flowers typically begin blooming in early summer and may continue sporadically into fall. The blooms are relatively petite but colorful. Most wild-type plants have purplish blue flowers but pink and white cultivars are also available. Bees are the primary pollinators but butterflies may also visit. In fact, some Convolvulus are the food sources for the larvae of several butterfly species.

Though tolerant of a wide range of conditions, ground morning glory performs best in full sun and loose, gravelly soil with a neutral to alkaline pH. It is quite drought tolerant but prolonged dry weather will reduce flowering. This trailing, spreading plant is woody at the base and may require seasonal pruning. Trimming in late winter will help maintain a tidy habit and encourage fresh, non-woody growth.

Ground morning glory is a beautiful seaside groundcover. It also looks beautiful in front of dry, sunny borders or cascading from containers or retaining walls.

This species may also be listed under its old name, Convolvulus mauritanicus.

Characteristics

  • AHS Heat Zone

    9 - 7

  • USDA Hardiness Zone

    7 - 9

  • Sunset Zone

    4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tender Perennial

  • Sun Exposure

    Full Sun

  • Height

    6"-18" / 15.2cm - 45.7cm

  • Width

    20"-36" / 50.8cm - 91.4cm

  • Bloom Time

    Early Summer, Summer, Late Summer, Early Fall, Fall

  • Native To

    Southern Europe, Mediterranean, Northern Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Salt

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Mat-forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Blue, Purple, Pink

  • Foliage Color (Spring)

    Green, Gray Green, Dark Green

  • Foliage Color (Summer)

    Green, Gray Green, Dark Green

  • Foliage Color (Fall)

    Green, Gray Green, Dark Green

  • Foliage Color (Winter)

    Green, Gray Green, Dark 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

    Container, Edging, Groundcover, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No