About
Coreopsis grandiflora 'Mayfield Giant' is a robust perennial that typically reaches heights of 90 cm. It features lanceolate foliage and produces bright golden-yellow, single blooms that can measure up to 7.5 cm across. These flowers appear on tall, slender stems from summer through autumn. This variety is notable for its extended, leafless flower stems, making it an excellent choice for floral arrangements.
About the genus
Coreopsis includes both annual and perennial species, characterized by their paired, simple leaves that may be palmate or pinnately divided. They produce elongated flower heads that resemble daisies and are borne on long stalks.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam, Sand, Chalk
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Wildlife gardens
Care notes
- Cultivation
- Grow in fertile, well-drained soil in full sun or partial shade
- Pruning
- Deadhead regularly to prolong flowering. Cut old stems back to their bases as they die back at the end of the year
- Propagation
- Propagate by basal softwood cuttings in spring or by division
- Pest resistance
- May be susceptible to slugs and snails
- Disease resistance
- Generally disease-free