Coreopsis verticillata 'Grandiflora' ('Golden Showers') (Golden Showers Coreopsis) — Perennial

Overview

Coreopsis verticillata 'Grandiflora' ('Golden Showers') is a perennial in the genus Coreopsis, part of the Asteraceae family. It typically grows around 1.0 m tall. Coreopsis verticillata 'Grandiflora' ('Golden Showers') grows best in full sun, and tolerates sandy and loamy soils. Its UK hardiness is rated H7. Suggested uses include borders, containers and cut flowers. It is native to South Carolina, Florida, Mississippi, Alabama, Nebraska, North Carolina, New Jersey and New York.

About the genus

Coreopsis is a genus of flowering plants in the family Asteraceae. Common names include calliopsis and tickseed, a name shared with various other plants.

Wikipedia contributors, "Coreopsis", CC BY-SA 4.0 — Coreopsis

In the garden

Coreopsis verticillata 'Grandiflora' ('Golden Showers') is a perennial member of the Asteraceae and originates from several eastern and central US states including South Carolina, Florida, Mississippi, Alabama, Nebraska, North Carolina, New Jersey and New York. It typically reaches about 1.0 m and produces a sustained display of yellow blooms between June and September. Position the plant in full sun on sandy or loamy ground with good drainage; it will tolerate sites that are moist but still drain freely. In UK terms the cultivar carries an H7 rating so it is fully hardy outdoors; its USDA hardiness range of 3–9 shows it copes with a wide temperature span. Allow a spot with direct sun to maximise flowering and avoid waterlogged soils. Use Golden Showers Coreopsis at the mid or back of mixed perennial borders, in larger containers where it has room to reach its height, or as a source of summer cut flowers. Regular removal of spent stems will encourage continued bloom within the June to September window and keeps the clump looking tidy while in flower.

Growing conditions

Best soil and position for Coreopsis

Sunlight: Full sun
Soil type: Sandy, Loamy
Soil moisture: Well-drained, Moist but well-drained
Exposure: Full sun
UK hardiness: H7

Plant details

Coreopsis verticillata 'Grandiflora' ('Golden Showers') size, habit and characteristics

Plant type: Perennial
Height: 1.0 m
Suggested uses: Borders, Containers, Cut flowers
Native to: South Carolina, Florida, Mississippi, Alabama, Nebraska, North Carolina, New Jersey, New York

Care notes

Pruning and caring for Coreopsis verticillata 'Grandiflora' ('Golden Showers')

Cultivation: Prefers well-drained soil; drought tolerant once established; deadhead to prolong flowering
Pruning: Cut back after flowering to encourage a second bloom and maintain shape
Propagation: Seed, Division

Frequently asked questions

How do I grow Coreopsis verticillata 'Grandiflora' ('Golden Showers')?

Prefers well-drained soil; drought tolerant once established; deadhead to prolong flowering.

Where is the best place to plant Coreopsis verticillata 'Grandiflora' ('Golden Showers')?

Coreopsis verticillata 'Grandiflora' ('Golden Showers') prefers full sun. It suits full sun positions.

What soil does Coreopsis verticillata 'Grandiflora' ('Golden Showers') need?

Coreopsis verticillata 'Grandiflora' ('Golden Showers') grows best in sandy and loamy soil. Aim for soil that stays well-drained to moist but well-drained.

How do I prune Coreopsis verticillata 'Grandiflora' ('Golden Showers')?

Cut back after flowering to encourage a second bloom and maintain shape.

How big does Coreopsis verticillata 'Grandiflora' ('Golden Showers') grow?

Coreopsis verticillata 'Grandiflora' ('Golden Showers') reaches a height of 1.0 m.

Is Coreopsis verticillata 'Grandiflora' ('Golden Showers') hardy in the UK?

Coreopsis verticillata 'Grandiflora' ('Golden Showers') has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.