Capsicum annuum var. annuum Grossum Group

RHS Plant Profile

green pepper

Other common names

bell pepper, pimento, sweet pepper

Synonyms

Capsicum annuum var. grossum

Fruit Edible Annual Biennial

A cultivated group selected for large fruit with sweet flavour. Sweet pepper plants are typically growing 40-70cm tall and produce fruit with sweet flesh that ripens from green to red, orange or yellow depending on the cultivar. They are tender annuals, grown best under protection.

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline 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
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: Accepted

How to Grow

Cultivation

Best grown inside on a sunny windowsill or in a greenhouse, but can be grown outside once all danger of frost has passed; select a sunny, sheltered position and grow in containers, peat-free growing bags or in open ground. Water regularly and feed with a high potassium liquid fertiliser once the first fruit has set. See How to grow: peppers for further cultivation details

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
Edible fruit
Conservatory and greenhouse

Pruning

No pruning required; pinch out growing tips of plants when they are about 20cm tall to encourage bushiness

Pests

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

Diseases

May be susceptible to grey moulds