Ceanothus 'Cynthia Postan'

Ceanothus ‘Cynthia Postan’

Californian lilac

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does flower in March

Plant does flower in April

Plant does flower in May

Plant does not flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Ceanothus 'Cynthia Postan'
  • Common name: Californian lilac
  • Family: Rhamnaceae
  • Plant Type: Shrub, Evergreen
Flower colour:

Blue

Foliage colour:

Green

Ceanothus ‘Cynthia Postan’ is a beautiful Californian lilac, bearing masses of rich blue flowers in early summer. Hardy and evergreen, it’s perfect for growing in a mixed or shrub border, where its blooms attract a wide range of pollinators. It can be trained against a wall or fence or grown as a small standard shrub.

Advertisement

Grow Ceanothus ‘Cynthia Postan’ in well-drained soil in full sun, particularly near a south- or west-facing wall which will provide additional shelter from cold winds and frost.

How to grow Ceanothus 'Cynthia Postan'

  • Plant size

    3m height

    2.5m spread

  • Aspect

    South facing, west facing

  • Position in border

    Middle, back

  • Sun exposure: Full sun
  • Hardiness: Hardy
  • Soil type: Well drained / light / sandy / clay / heavy / moist / chalky / alkaline

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do Plant in May

Do Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does flower in March

Plant does flower in April

Plant does flower in May

Plant does not flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Take cuttings
Take cuttings

Do not Take cuttings in January

Do not Take cuttings in February

Do not Take cuttings in March

Do not Take cuttings in April

Do Take cuttings in May

Do Take cuttings in June

Do Take cuttings in July

Do not Take cuttings in August

Do not Take cuttings in September

Do not Take cuttings in October

Do not Take cuttings in November

Do not Take cuttings in December

Ceanothus 'Cynthia Postan' and wildlife

Ceanothus 'Cynthia Postan' is known for attracting bees and butterflies​/​moths. It nectar-pollen-rich-flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Attractive to Butterflies​/​Moths

Does not attract Other pollinators

Is Ceanothus 'Cynthia Postan' poisonous?

Ceanothus 'Cynthia Postan' has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Ceanothus 'Cynthia Postan'