Gladiolus 'Robinetta' (_recurvus_ hybrid)

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sword lily 'Robinetta'

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sword lily 'Robinetta' RHS / Joanna Kossak
sword lily 'Robinetta' RHS
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'Robinetta' grows to around 50cm and in early summer produces rich-pink flowers with a narrow cream splash on the lower petals

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity
1–2 years
Max Spread
0-0.1 metre
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–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)
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Iridaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
Ornamental bulbsnot to be eaten. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Gladiolus are cormous perennials with fans of sword-shaped or linear leaves and spikes of funnel-shaped flowers
Name Status
Accepted

How to Grow

Cultivation

Grow gladioli in fertile, well-drained soil in full sun. Plant corms 10-16cm deep in spring. If the soil is not perfectly drained, plant the corms on a bed of sand. When the flower spikes reach one third to half their final height, feed with a potassium-rich fertiliser such as a tomato feed. Repeat every 10-14 days until three weeks after flowering. In areas where there is frost, lift the corms when the foliage has turned yellow-brown. Snap the stem off the corms and dry the corms off for 14 days and keep the new corms dry and frost-free until planting time This plant was included in the RHS Gladiolus (gladioli) trial 2024-2025 https://www.rhs.org.uk/plants/trials-awards/ongoing-plant-trials/gladiolus

Propagation

Separate cormlets when lifting in autumn

Suggested planting locations and garden types

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

Pruning

Snap off old stems from the corms when lifting them for winter storage

Pests

May be susceptible to gladiolus thrip, aphids and slugs

Diseases

May be susceptible to gladiolus corm rot, grey moulds (Botrytis), Fusarium bulb rot, gladiolus core rot, gladiolus dry rot, gladiolus scab and neck rot, fungal leaf spot, and virus diseases