Capsicum annuum 'Riot'

RHS Plant Profile
chilli pepper 'Riot'

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Annual Biennial

An ornamental chilli pepper variety from the USA, producing high yields of striking, flame-like fruits that sit erect atop the foliage in clusters. Its small height and bushy habit make it perfect for container growing. Fruits are medium hot and can be harvested through Summer and into Autumn

Position

Full sun

Soil Types

Sand, Loam

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Sand Loam
Moisture
Well–drained or Moist but well–drained
pH
Acid or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H1C

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Solanaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Humans/Pets: Irritant if eatenskin/eye irritant. Wear gloves and other protective equipment when handling For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Capsicum are annual or perennial plants, with simple, alternate leaves, and tubular or bell-shaped flowers. They are grown for their glossy, many-seeded edible fruits, including chilli and bell peppers, and as indoor ornamental plants
Name Status
Unresolved

How to Grow

Cultivation

Sow indoors from late Winter to mid-Spring in a small pot filled with good quality seed compost and cover with a fine layer of vermiculite. When seedlings are 2.5cm tall transplant to individual pots, water and keep in a sunny spot. See how to grow: chilli peppers for further advice

Propagation

Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice

Suggested planting locations and garden types

  • Patio and container plants
  • Conservatory and greenhouse

Pruning

Pinch out growing tips to encourage bushiness. Don't remove male flowers as fertilisation is essential

Pests

May be susceptible to aphids, whitefly and glasshouse red spider mite

Diseases

May be susceptible to grey moulds