Zantedeschia 'Yellow Calla'

RHS Plant Profile
arum lily 'Yellow Calla'

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Position

Full sun

Soil Types

Loam

Size

Time to Maturity
No preference

Growing Conditions

Loam
Moisture
Moist but 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)
No preference

Botanical Details

Family
Araceae
Native to GB/Ireland
No
Habit
Clump forming
Potentially harmful
Harmful if eaten; skin and eye irritant. Wear gloves and other protective equipment when handling
Genus
Zantedeschia can be deciduous or semi-evergreen, tuberous perennials with lance-shaped or arrow-shaped leaves and tiny yellow flowers forming a dense spike-like spadix, with a showy, hood-like spathe, sometimes followed by orange berry-like fruits
Name Status
Unresolved

How to Grow

Cultivation

Grow in peat-free, loam-based potting compost in full light. When in growth, water freely and apply a balanced liquid fertiliser every 2-3 weeks. Calla lilies need a period of dormancy over winter, with little or no water. Once the leaves die down after flowering, move them to a dry, frost-free, preferably dark location until spring. See zantedeschia cultivation

Propagation

Propagate by division in spring

Pruning

Remove the flowers as they start to fade, pulling the entire stem out at the base

Pests

May be susceptible to glasshouse red spider mite

Diseases

Generally disease-free