Phaseolus coccineus ‘Scarlet Emperor’

Runner bean

  • Botanical name: Phaseolus coccineus 'Scarlet Emperor'
  • Common name: Runner bean
  • Family: Papilionaceae
  • Plant Type: Vegetable
Flower colour:


Foliage colour:


Runner beans are incredibly easy to grow, bearing masses of long, sweet-tasting beans all summer long. There’s a huge range of cultivars to choose from, bearing red, white or bi-coloured flowers, adding to their ornamental value.


Phaseolus coccineus ‘Scarlet Emperor’ is an old favourite runner bean, with bright red flowers. It produces heavy crops of long, smooth textured dark-green pods with an excellent flavour.


Grow Phaseolus coccineus ‘Scarlet Emperor’ in fertile, moist but well-drained soil in full sun. Keep plants well watered and harvest the beans regularly to prolong flowering.

How to grow Phaseolus 'Scarlet Emperor'

  • Plant size

    3m height

    10cm spread

  • Aspect

    South facing, west facing

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

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

Do not Sow in January

Do not Sow in February

Do Sow in March

Do Sow in April

Do not 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


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


Do not Harvest in January

Do not Harvest in February

Do not Harvest in March

Do not Harvest in April

Do not Harvest in May

Do not Harvest in June

Do Harvest in July

Do Harvest in August

Do not Harvest in September

Do not Harvest in October

Do not Harvest in November

Do not Harvest in December

Phaseolus 'Scarlet Emperor' and wildlife

Phaseolus 'Scarlet Emperor' is known for attracting bees. It has nectar/pollen rich flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Does not attract Other pollinators

Is Phaseolus 'Scarlet Emperor' poisonous?

Phaseolus 'Scarlet Emperor' 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 Phaseolus 'Scarlet Emperor'