Rebutia fiebrigii 'Donaldiana'

RHS Plant Profile

Donald's crown cactus

RHS

Synonyms

Rebutia donaldiana

Conservatory Greenhouse Cactus Succulent Houseplants

'Donaldiana' is a clustering cactus with spherical stems to 10cm, bearing bristly spines and bright orange flowers to 3.5cm across in summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

Up to 10 cm

Max Spread

0-0.1 metre

Size

Time to Maturity: 5–10 years
Max Spread: 0-0.1 metre
Max Height: Up to 10 cm

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid 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): H2

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Cactaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Rebutia can be solitary or clustering cacti, with globose or shortly cylindrical, ribbed or tuberculate stems, and showy funnel-shaped flowers
Name Status: Accepted

How to Grow

Cultivation

Under glass, grow in standard cactus compost in full light with low humidity. From spring to summer, water moderately and apply a balanced liquid fertiliser 3 or 4 times; keep completely dry at other times

Propagation

Propagate by seed at 21°C (70°F) in early spring, or remove offsets in spring or summer

Suggested planting locations and garden types

Patio and container plants

Pruning

No pruning required

Pests

May be susceptible to mealybugs early in the season

Diseases

Relatively disease resistant