Helenium Mardi Gras ('Helbro')

RHS Plant Profile
sneezeweed [Mardi Gras]

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sneezeweed [Mardi Gras] RHS / Joanna Kossak
sneezeweed [Mardi Gras] RHS / Joanna Kossak
sneezeweed [Mardi Gras] RHS

Synonyms

Helenium 'Helbro'

Plants for pollinators
Herbaceous Perennial
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A clump-forming perennial to around 75cm with mid-green leaves. Stiff stems support large, daisy-like flowers with a brown and yellow centre and yellow petals flamed with red and orange, from mid-summer to mid-autumn

Position

Full sun

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
Aspect
South–facing or East–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
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Helenium may be upright, clump-forming annuals, biennials or herbaceous perennials with simple leaves and showy daisy-like flower-heads over a long period
Name Status
Trade

How to Grow

Cultivation

Grow in any fertile, moist but well-drained soil in full sun. Should not need support

Propagation

Propagate by division in autumn or spring or root basal cuttings in cold frame in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Cut flowers
  • Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

Generally pest-free

Diseases

May be susceptible to a leaf spot