Pelargonium 'Ardens'

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geranium 'Ardens'

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geranium 'Ardens' RHS

Synonyms

Pelargonium × ardens

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A tuberous perennial. It flowers in spring and early summer on tall stems, after which it becomes semi-dormant, shedding its silvery-green, pinnately-lobed leaves. It originated in the Nineteenth Century as a primary hybrid between P. lobatum × P. fulgidum

Position

Full sun

Soil Types

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

Loam
Moisture
Well–drained
pH
Neutral

Position

Full sun
Aspect
South–facing or West–facing or East–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
Deciduous
Habit
Columnar upright
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

How to Grow

Cultivation

Keep frost-free in a pot of free-draining compost. Reduce watering in later summer as plants become dormant. See pelargonium cultivation

Propagation

Propagate by softwood cuttings in spring, but finding appropriate plant material can be tricky

Suggested planting locations and garden types

  • Patio and container plants
  • City and courtyard gardens

Pruning

Deadhead and remove any yellowing leaves

Pests

Generally trouble-free, but may be susceptible to aphids

Diseases

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