Asperula sintenisii

RHS Plant Profile

Sintenis woodruff

Dorling Kindersley Ltd

Synonyms

Asperula nitida subsp. puberula
Asperula aristata subsp. thessala

Alpine Rockery

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A tufted, cushion-forming, evergreen perennial with rosettes of narrow, blue-green leaves less than 1cm long. Narrow, tubular, pink flowers are produced singly or in pairs in early summer

Position

Full sun, Partial shade

Soil Types

Chalk, 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

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: North–facing or East–facing or South–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: Rubiaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Matforming
Genus: Asperula can be annuals, evergreen or deciduous perennials, with small, paired or whorled leaves and terminal clusters of small, funnel-shaped flowers in spring or summer
Name Status: Correct
Plant Range: Greece, Turkey

How to Grow

Cultivation

Grow in sharply-drained moderately fertile soil in sun or partial shade. Protect from excess winter wet

Propagation

Propagate by seed sown in autumn or by division in autumn or spring

Suggested planting locations and garden types

Cottage and informal garden
Patio and container plants
Rock garden
City and courtyard gardens
Gravel garden
Garden edging

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free