Coreopsis grandiflora 'Mayfield Giant'

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large-flowered tickseed 'Mayfield Giant'

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A clump-forming, upright perennial to 90cm tall with lance-shaped leaves and golden-yellow, single flowers up to 7.5cm wide borne on slender, erect stems from summer into autumn; this cultivar has a long length of leafless flower stem making it useful as a cut flower

Position

Full sun, Partial shade

Soil Types

Loam, Sand, Chalk

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

Loam Sand Chalk
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Coreopsis can be annuals or perennials, with paired, simple, palmate or pinnately divided leaves and long-stalked, daisy-like flower-heads
Name Status
Accepted

How to Grow

Cultivation

Grow in fertile, well-drained soil in full sun or partial shade

Propagation

Propagate by basal softwood cuttings in spring or by division

Suggested planting locations and garden types

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

Pruning

Deadhead regularly to prolong flowering. Cut old stems back to their bases as they die back at the end of the year

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free