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Coreopsis Golden Stardust

Coreopsis (x) grandiflora Golden Stardust
Large-flowered Tickseed, Golden Tickseed

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A hardy (-25°C) and floriferous variety of Coreopsis with a compact habit. This perennial produces a profusion of daisy-like flowers measuring 5 to 6 cm in diameter, bicoloured in golden yellow and mahogany red. It is easy to grow and elegantly enhances borders, flower beds, rockeries, and pots from June to October. Grow in full sun in a well-drained, rich soil, kept slightly moist.
Flower size
6 cm
Height at maturity
40 cm
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -20°C
Soil moisture
Moist soil
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Best planting time March to April
Recommended planting time February to April, September to October
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Flowering time June to September
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Description

Coreopsis 'Golden Stardust' is a highly floriferous perennial plant with large, brightly coloured flowers, perfect for adding life to terraces and balconies throughout the summer. It is also a hardy variety that brings a lot of colour to sunny borders and rockeries. It is easy to maintain and thrives in sunny locations with light, rich, and well-drained soil.

Coreopsis 'Golden Stardust' is a horticultural variety selected by Blair Winner from Santa Paula, California, in the United States. It is a herbaceous perennial plant from the Asteraceae family, like daisies and dandelions. It has remarkable cold resistance, with its crown able to withstand temperatures as low as -20°C. Although it is a perennial, it is not uncommon to cultivate it as an annual due to its rapid growth and ability to flower abundantly from a young age. Its continuous flowering quickly exhausts the plant, which has a lifespan of only 2 or 3 years. This 'Golden Stardust' cultivar forms a small, dense and well-branched clump of about 40 cm in all directions within a few months. Its flowering begins in June and continues until September-October if you regularly prune the faded flowers. Its flowers are 5 to 6 cm heads carried on slightly hairy stems. They have golden yellow ligulate florets with a reddish mahogany base, arranged in a collar around a small yellow centre. This exuberant flowering attracts pollinating insects. The vibrant green foliage, consists of opposite, lanceolate, entire leaves, occasionally incised at the base, and almost sessile (without a petiole). The above-ground vegetation of this coreopsis is deciduous: it emerges from the ground in spring and dries up in autumn.

Coreopsis grandiflora 'Golden Stardust' is a good plant for borders, slopes, and rockeries that are not too dry in summer. It is also a classic choice for flower-filled terraces. And its flowers make cheerful cut flowers. It pairs perfectly with wallflowers in warm tones and dwarf asters, love-in-a-mist and perennial flax. This small plant blends harmoniously into slightly wild environments, adding a touch of colour to these natural spaces, especially when combined with grasses, yarrow, or coneflowers. Whether in a pot, container, or in the ground, it flowers abundantly from the first year, offering a magnificent spectacle throughout the summer with minimal watering.

Flowering

Flower colour two-tone
Flowering time June to September
Inflorescence Flower head
Flower size 6 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 40 cm
Spread at maturity 40 cm
Growth rate fast

Botanical data

Genus

Coreopsis

Species

(x) grandiflora

Cultivar

Golden Stardust

Family

Asteraceae

Other common names

Large-flowered Tickseed, Golden Tickseed

Origin

Cultivar or hybrid

Planting and care

The large-flowered coreopsis dislikes winter humidity and very clayey, heavy and compact soils. This plant requires full sun to flower well. It likes soil that is light, rich and not too dry, porous, always well-drained, slightly acidic, neutral and slightly chalky. Under these conditions, plants flower and live for a long time. To promote flower production, regularly remove faded flowers. Pruning in July will promote autumn regrowth. This will also extend the life of the plant. Rejuvenate exhausted clumps by splitting every 3 years or so.

Planting period

Best planting time March to April
Recommended planting time February to April, September to October

Intended location

Suitable for Meadow, Rockery, Flowerbeds
Type of use Edge of border, Container
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, light, rich, well-drained soil

Care

Pruning instructions Remove faded flowers throughout summer to encourage the formation of new flower buds and achieve uninterrupted flowering until autumn.
Pruning Pruning recommended once a year
Pruning time August to September
Disease resistance Very good
Overwinter Can be left in the ground

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