Lysimachia barystachys

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Herbaceous Perennial
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A vigorous clump-forming perennial up to 1m high, with hairy stems and oblong to lance-shaped leaves with finely hairy edges. Long, dense spikes of small white flowers, often curving at the tips, are produced in mid to late summer

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 or Poorly–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Primulaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Lysimachia are herbaceous or evergreen perennials with simple leaves and star-shaped, cupped or bowl-shaped flowers in terminal racemes or panicles, or solitary in leaf axils
Name Status
Correct

How to Grow

Cultivation

Grow in humus-rich, moist soil that does not dry out in summer. Thrives in full sun but will tolerate partial shade. Can spread rapidly in good conditions, divide regularly to control growth

Propagation

Propagate by seed or by division, spreads naturally by rhizomes

Suggested planting locations and garden types

  • Cottage and informal garden
  • Prairie planting
  • Wildflower meadow
  • Flower borders and beds

Pruning

Cut back after flowering

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free