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Coreopsis grandiflora 'Sunray' (coreopsis, 'Sunray' tickseed)

Coreopsis grandiflora 'Sunray' Photo/Illustration: Mark Kane

(Based on 5 user reviews)

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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Coreopsis grandiflora 'Sunray' kor-ee-OP-sis gran-dih-FLOOR-ah Common Name: coreopsis, 'Sunray' tickseed Genus: Coreopsis
'Sunray' coreopsis has double to semi-double yellow flowers that begin blooming in late spring and continue throughout the summer. The species is native to the central and southeastern U.S. Flowers are good for cutting. Use in beds and borders or in containers.
Noteworthy characteristics: Double, deep yellow flowers the whole summer. Usually grown as an annual.
Care: Grow in full sun or partial shade and fertile, well-drained soil. Deadhead regularly, although birds are attracted to the seedheads.
Propagation: Start seeds at 55° to 61° F in winter.
Problems: Slugs, snails, rust, bacterial spot, Botrytis flower blight, aster yellows, powdery and downy mildews, fungal spots.
Height 1 ft. to 3 ft.
Spread 1 ft. to 3 ft.
Growth Pace Moderate Grower
Light Full Sun to Part Shade
Moisture Medium Moisture
Maintenance Moderate
Characteristics Native; Showy Flowers
Bloom Time Early Summer; Late Spring; Late Summer; Spring; Summer
Flower Color Yellow Flower
Uses Beds and Borders, Cut Flower, Suitable as Annual
Seasonal Interest Spring Interest, Summer Interest
Type Perennials

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