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Herbaceous Perennial

Coreopsis grandiflora 'Mayfield Giant'

large-flowered tickseed 'Mayfield Giant'

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

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Loam

Sand

Chalk

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

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)

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

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