Tuberaria lignosa

RHS Plant Profile
plantain-leaved sun rose

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Other common names

truffle sun rose

Synonyms

Diatelia tuberaria
Helianthemum tuberaria

Herbaceous Perennial
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A woody-based perennial, with rosettes of elliptic, hairy dark green leaves with deeply impressed veins and paler undersides. Lemon yellow flowers with golden yellow centres are produced in early to mid summer

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
1–2 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
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)
H3
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cistaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
A genus of around 12 species of annual and perennial flowering plants, native to southern and western Europe and found in dry, stony areas in coastal locations. The dark green leaves form rosettes and yellow, five-petalled flowers with dark red blotches appear in summer
Name Status
Correct
Plant Range
W Mediterranean, Canary Isl.

How to Grow

Cultivation

Grow in any well-drained soil in full sun. Provide winter protection in areas prone to frost, or grow in containers and overwinter in a greenhouse or conservatory

Propagation

Propagate by seed, sown at 13-16°C in early spring, or by division, separating rooted offsets in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Gravel garden
  • Mediterranean climate plants
  • Rock garden
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free