Copiapoa hypogaea

RHS Plant Profile
underground copiapoa
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Cactus Succulent

A slow growing, perennial cactus forming a cluster of squat round stems, dark green to brown in colour, and 6-7cm across with 12 or more ribs. White woolly areoles produce a small number of white radial spines. Yellow flowers are produced in summer

Position

Full sun

Soil Types

Sand, Chalk, Loam

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

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

Position

Full sun
Aspect
South–facing
Exposure
Sheltered
Hardiness
H2
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cactaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Potentially harmful
Handle with care due to prickly spines
Genus
Copiapoa are slow-growing cacti with solitary or clustered, ribbed stems and funnel-shaped yellow flowers in summer
Name Status
Correct
Plant Range
N Chile

How to Grow

Cultivation

In milder areas, may be grown outdoors in gritty, poor soil in full sun. Protect from excess winter wet. In colder areas, grow under glass in a mix of 3 parts standard cactus compost and one part perlite. This is a desert plant, native to one of the driest regions of the world; water moderately from spring to early autumn and keep dry in winter. See houseplant cacti and succulent cultivation for more details

Propagation

Propagate by seed sown at 19-24°C (66-75°F) in early spring, or by division, removing offsets in summer

Suggested planting locations and garden types

  • Houseplants
  • Conservatory and greenhouse

Pruning

No pruning required

Pests

May be susceptible to mealybugs when grown under glass

Diseases

Generally disease-free