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BogsHerbaceous Perennial

Lysimachia thyrsiflora

tufted loosestrife

A native perennial wildflower found in Yorkshire and Central Scotland. The spreading rhizomes produce upright stems up to 60cm tall, bearing paired, narrowly oval, pointed leaves and small, yellow, star-shaped flowers in dense, fluffy clusters in summer

Synonyms
Naumburgia thyrsiflora
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Clay
Loam
Moisture
Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Primulaceae
Native to GB / Ireland
Yes
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

Plant range
NE Asia

How to grow

Cultivation

Naturally found in marshes, ditches and canals, needing permanently moist soil in a sunny or partially shaded spot

Propagation

Propagate by division

Suggested planting locations and garden types
Pruning

No pruning required. Can be cut back at the end of the season

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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