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Herbaceous Perennial

Lobelia × speciosa 'Hadspen Purple'PBR

lobelia 'Hadspen Purple'

'Hadspen Purple' is a semi-evergreen perennial, up to 60cm in height, with upright stems bearing ovate to lance-shaped, purple-flushed, light green leaves and terminal racemes of two-lipped, bright purple flowers from summer into autumn

Synonyms
Lobelia syphilitica 'Hadspen Purple'
Lobelia 'Hadspen Royal Purple'
see moreLobelia 'Hadspen Purple'
Lobelia × gerardii 'Hadspen Purple'
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring
Summer Purple Green Purple
Autumn Purple Green Purple
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or North–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Campanulaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
Harmful if eaten, skin irritant. Wear gloves and other protective equipment when handling
Genus

Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles

Name status

Accepted

How to grow

Cultivation

Plant in deep, fertile, reliably moist soil in sun or partial shade. Feed every 2 weeks with a balanced liquid fertilizer until midsummer and a low nitrogen fertilizer for the remainder of the growing season. Protect the crown of the plant during winter with a thick, dry mulch

Propagation

Divide large clumps of plants every second year in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds
  • Garden edging
  • Wall side borders
Pruning

Cut down faded flower spikes in autumn

Pests

May be susceptible to slugs

Diseases

May be susceptible to crown rot

Get involved

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