Orostachys spinosa

RHS Plant Profile
spiny pennywort

Synonyms

Sedum spinosum

Alpine Rockery Cactus Succulent Conservatory Greenhouse

A slow-growing perennial producing rosettes of grey-green leaves up to 10cm across. The short, fleshy leaves have spiny tips, and usually curve inwards but sometimes the longer, outer row opens out to give a sunflower-like effect. Dense, 30cm spikes of small, creamy flowers are sometimes produced in late summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity
5–10 years
Max Spread
0.1-0.5 metres
Max Height
Up to 10 cm

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness
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
Orostachys are low-growing perennials forming dense rosettes of short, fleshy leaves. Erect stems carry clusters of star-shaped flowers in summer or autumn. Individual rosettes die after flowering
Name Status
Correct
Plant Range
Russia to China

How to Grow

Cultivation

Grow in very well-drained soil or compost in full sun. Although very hardy, plants will not tolerate wet or humid conditions so are better grown under cover in a well-ventilated, cold greenhouse or cold frame

Propagation

Propagate by rooting offsets in spring

Suggested planting locations and garden types

  • Gravel garden
  • Patio and container plants

Pruning

Rosettes die after flowering, so remove them carefully

Pests

May be susceptible to mealybugs

Diseases

Generally disease-free