Rudbeckia laciniata 'Starcadia Razzle Dazzle'

RHS Plant Profile
coneflower 'Starcadia Razzle Dazzle'

Save a plant

Where do you want to save Rudbeckia laciniata 'Starcadia Razzle Dazzle'?

Plants I own
Wishlist
Go to My Plants
coneflower 'Starcadia Razzle Dazzle' RHS
Award of Garden MeritPlants for pollinators
Herbaceous Perennial
Buy this from Plant Nurseries
3 Suppliers

A herbaceous, clump-forming perennial to 1.5m in height with single, daisy-like, yellow flowers and conical centres which turn brown as they age. Flowers from midsummer through to early autumn

Position

Full sun

Soil Types

Clay, Loam

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
1-1.5 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–facing or East–facing
Exposure
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
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus
Rudbeckia may be annuals, biennials or rhizomatous herbaceous perennials, with simple or pinnately divided leaves and large daisy-like flower-heads with yellow or orange rays surrounding a prominent conical disk
Name Status
Accepted

How to Grow

Cultivation

Suitable for larger gardens. Spreading rhizomes means it can have invasive tendencies

Propagation

Divide plants by separating rhizomes in spring or late autumn

Suggested planting locations and garden types

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

Pruning

Cut back in autumn

Pests

Generally pest-free

Diseases

Generally disease-free