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Cobaea scandens

Cathedral bells

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 not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does flower in October

Plant does flower in November

Plant does not flower in December

  • Botanical name: Cobaea scandens
  • Common name: Cathedral bells
  • Family: Cobaeaceae
  • Plant Type: Climber
Flower colour:

Purple

Foliage colour:

Green

Sometimes called cathedral bells, Cobaea scandens is a vigorous and irrepressible vine native to tropical America, where it grows as a strong woody perennial. It may be grown in large pots for standing outdoors in summer, and will behave as a perennial if kept indoors in winter at about 7C. In a very mild winter plants may survive and remain virtually evergreen, but they are usually grown as annuals on a wall, fence or pergola. Plants have a tropical appearance, with lush foliage and 8cm flowers with prominent stamens. Once fully open, they are sweetly fragrant. The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM).

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Grow Cobaea scandens in moist but well-drained soil in full sun. Deadhead spent blooms to prolong flowering.

How to grow Cobaea scandens

  • Plant size

    10m height

    3m spread

  • Aspect

    South facing, west facing

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

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
Sow
Sow

Do not Sow in January

Do not Sow in February

Do Sow in March

Do Sow in April

Do Sow in May

Do not Sow in June

Do not Sow in July

Do not Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December

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 not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does flower in October

Plant does flower in November

Plant does not flower in December

Cobaea scandens and wildlife

Cobaea scandens has no particular known value to wildlife in the UK.

Is Cobaea scandens poisonous?

Cobaea scandens 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 Cobaea scandens