Jovibarba allionii 'Oki'

RHS Plant Profile
beard of Jupiter 'Oki'

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beard of Jupiter 'Oki' RHS
Cactus Succulent
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An evergreen succulent with rosettes of fleshy green leaves tipped with red. After several years, a stem bearing pale yellow, bell-shaped flowers may be produced in summer, after which the individual rosette dies off

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 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
Aspect
East–facing or South–facing or North–facing or West–facing
Exposure
Exposed or 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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Crassulaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Genus
Jovibarba are rosette-forming perennial succulents. They are mainly grown for their architectural and colourful foliage, but they may also produce pale greenish-yellow or yellow bell-shaped flowers.
Name Status
Accepted

How to Grow

Cultivation

Grow in moderately fertile, gritty, well-drained soil in full sun. Protect from excessive winter wet. Suitable for rock garden, scree bed, wall crevice, trough or alpine house

Propagation

Propagate by rooting offsets in summer

Suggested planting locations and garden types

  • Rock garden
  • Patio and container plants

Pruning

No pruning required

Pests

May be susceptible to vine weevil

Diseases

Generally disease-free