Sanguisorba tenuifolia 'White Tanna'

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slender-leaved burnet 'White Tanna'

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slender-leaved burnet 'White Tanna' RHS
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Herbaceous Perennial
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A rhizomatous herbaceous perennial with rosettes of long, finely-pinnate, finely-toothed, glossy green leaves and branching stems with a profusion of neat, hanging, bottlebrush-like white flowerheads from late summer to autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or East–facing or North–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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Rosaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Sanguisorba are rhizomatous herbaceous perennials with attractive, pinnate leaves and branched stems bearing terminal spikes of small fluffy flowers with conspicuous stamens
Name Status
Unresolved

How to Grow

Cultivation

Grow in in full sun or partial shade, in retentive, moist but well-drained soil that does not dry out in summer

Propagation

Propagate by division in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Prairie planting
  • Low Maintenance
  • Cut flowers
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs

Diseases

Generally disease-free