How to Grow Ceratostigma plumbaginoides Plants in your Garden

Gardener's HQ Guide to Growing Plumbago

The Ceratostigma plumbaginoides plant belongs to the eight strong Ceratostigma genus. The genus is a native of the temperate and tropical zones of Asia and Africa, while C. plumbaginoides itself is native to western China.

Members of the genus range from subshrubs through to shrubs and are typically herbaceous in nature, though some are evergreen. Plants have spirally arranged leaves, while the flowers are found in compact inflorescences.


leadwort photograph by Jennifer Snyder.

This plant is often used by gardeners to bring a touch of color in the late summer (flowers) and autumn (leaves).

Quick Growing and Care Guide

  • Scientific name: Ceratostigma plumbaginoides
  • Common Name (s): Plumbago, hardy blue-flowered leadwort, blue ceratostigma
  • Growing Zone (USA / UK Hardiness): 5 to 9 / H5

Plant Details

  • Life Cycle/Type: Deciduous shrub
  • Plant Height: 9 to 12 inches (20 to 30 cm)
  • Plant Spread: 12 to 18 inches (30 to 45 cm), mat forming, clump forming
  • Blooms: Mid summer to early autumn. Long flowering.
  • Flower Details: Pale to deep blue. Salver shaped.
  • Leaf Foliage Details: Simple. Shiny. Oval to obovate. Green turning bronze red in the autumn.

Growing Conditions

  • Best Light Conditions: Full sun to partial (afternoon) shade. Sheltered location.
  • Suitable Soil Types: Well drained and fertile. Loam, sand, clay, chalk
  • Suitable Soil pH: most
  • Soil Moisture: Medium
  • Sowing, planting, and Propagation: Spreads from rhizomes. Take cuttings from softwood in the spring, or from semi-hardwood in the summer.

Further Information

  • Best used in: Flower borders on slopes and banks, Courtyards, Cottage gardens, shrub under plant, edging
  • Miscellaneous : Used to make Bach flower remedies. Low maintenance. Single seeded capsule shaped fruit. Takes from two to five years to reach full height. Does not like wet soils with poor drainage. Hornlike stigma.
  • Family : Plumbaginaceae
  • Further Reading and References used: MBG; RHS;

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Common Garden Species
Index – C

Camellia japonica

Cenolophium denudatum

Ceratostigma plumbaginoides

Cercis canadensis

Cercis occidentalis

Cercis siliquastrum

Cornus kousa

Cornus florida

Cupressus sempervirens

Cyclamen persicum

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