Pelargonium 'Rimfire' (R) | geranium 'Rimfire'

RHS

Bedding Conservatory Greenhouse Houseplants

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'Rimfire' has unusual-coloured flowers. Petals are a mix of red, in the shade of dried blood, and dark purple edged with salmon pink

Position

Full sun, Partial shade

Soil Types

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

Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or East–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: 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: Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea: Regal pelargoniums are evergreen perennials or subshrubs, bushy in habit, with rounded, often lobed leaves and usually single flowers to 4cm across, borne in clusters in late spring and into summer, in shades of pink, red, orange and purple or white

How to Grow

Cultivation

Grow in fertile well-drained soil. Feed regularly through the growing season. Over winter in frost-free conditions in good light. See pelargonium cultivation

Propagation

Propagate by softwood cuttings of non-flowering shoots in spring or summer

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Patio and container plants
Flower borders and beds

Pruning

Deadhead regularly. Cut back if bringing older plants indoors for overwintering

Pests

Generally trouble-free but may be susceptible to the usual glasshouse pests such as aphids in spring and glasshouse whitefly

Diseases

Generally disease-free, but may be susceptible to grey moulds, pelargonium rusts and pelargonium viruses