Pelargonium sidoides magenta-flowered

RHS Plant Profile

African geranium magenta form

Conservatory Greenhouse Herbaceous Perennial Houseplants

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A bushy tender evergreen perennial with soft, rounded silvery grey-green leaves with wavy edges. Clusters of small, delicate velvety dark magenta-red flowers appear on wiry arching stems from April through to September

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1–2 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: 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): H1A

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Geraniaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Pelargonium can be perennials, sub-shrubs or shrubs, sometimes succulent and mostly evergreen, with palmately lobed or pinnately divided leaves and clusters of slightly irregular, 5-petalled flowers
Name Status: Correct

How to Grow

Cultivation

May be planted outdoors in beds, baskets and containers after all risk of frost has passed; young plants may need to be hardened off first. Grow in fertile, neutral to alkaline soil in full sun, and overwinter indoors. See pelargonium cultivation for more detailed advice

Propagation

Propagate by seed or by softwood cuttings

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Hanging Basket
Houseplants
Patio and container plants
Low Maintenance
Conservatory and greenhouse
Flower borders and beds

Pruning

No pruning required. Deadhead regularly to encourage further flowering

Pests

May be susceptible to vine weevils, leafhoppers, root mealybugs, aphids, caterpillars, western flower thrips and sciarid flies

Diseases

May be susceptible to grey moulds, black leg, pelargonium rust and pelargonium viruses