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Convolvulus sabatius AGM

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© RHS 2003

Characteristics

Plant type

Bedding

Habit

Trailing

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Blue and Purple in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

1-2 years


Preferred common name

blue rock bindweed

Family

Convolvulaceae


Convolvulus can be annuals, perennials or shrubs, erect or scrambling, with simple or palmately divided leaves and solitary or clustered, open funnel-shaped flowers

C. sabatius is a trailing, woody-based perennial forming a mat to 20cm in height, with small, oval leaves and widely funnel-shaped, purplish-blue flowers 2cm in width

Other common names

  • blue rock bindweed

Synonym(s)

  • Convolvulus mauritanicus
  • Convolvulus sabatius subsp. mauritanicus

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Best grown in a gritty, well-drained soil in a sheltered, sunny position; alternatively grow in a container or raised bed

Soil

  • Well-drained
  • Acid, Alkaline or Neutral
  • Loam, Chalk or Sand

Propagation

Propagate by seed or softwood cuttings

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants


How to care

Pruning

Trim as required

Diseases

Generally disease free