Coreopsis grandiflora Solanna™ Sunset Bright (Tickseed)

Coreopsis grandiflora Solanna™ Sunset Bright: A Golden Tickseed with a Fiery Heart

Coreopsis grandiflora Solanna™ Sunset Bright is a compact, long-blooming tickseed with golden-yellow flowers, warm red centers, tidy green foliage, and the kind of easy charm that makes sunny borders feel instantly brighter. Part of the Solanna™ series, this well-branched perennial is prized for first-year flowering, prolonged bloom from spring to fall, and reliable performance in containers, pollinator gardens, cottage gardens, edging, and low-maintenance landscapes. It is colorful, practical, pet-friendly, and compact enough for small spaces.

Quick Facts – Coreopsis grandiflora Solanna™ Sunset Bright

Compact, mounded perennial tickseed with golden-yellow daisy-like flowers marked by a warm red eye.
Use: Excellent for sunny borders, containers, cottage gardens, pollinator gardens, edging, mass planting, cut flowers, and low-maintenance landscapes.
Highlight: A bright Solanna™ series Coreopsis with prolonged flowering, first-year bloom, good mildew tolerance, and a bold golden-red color pattern.

Botanical Name	Coreopsis grandiflora Solanna™ Sunset Bright
Family	Asteraceae
Common Names	Solanna™ Sunset Bright Tickseed, Large-Flowered Tickseed, Coreopsis
Plant Type and Habit	Herbaceous perennial; compact, mounded, well-branched
Hardiness	USDA Zones 4 to 9
Size	About 14 to 20 inches tall and 20 to 22 inches wide, depending on growing conditions
Sun and Exposure	Full sun for best flowering, color, and compact growth
Soil	Average, dry to medium moisture, well-drained soil
Bloom Time	Spring to fall with good care
Flower Color	Golden yellow with a red to burgundy eye
Wildlife Value	Attracts bees, butterflies, and other pollinators
Special Traits	Long blooming, deer-resistant, mildew tolerant, container-friendly, useful for cut flowers and mass planting

Care – Quick

• Planting: Plant in spring after frost or in early fall where winters are mild.
• Light: Give full sun for dense growth and maximum flowering.
• Water: Water regularly the first season; reduce once established.
• Feeding: Avoid heavy fertilizer, which can create soft growth and fewer flowers.
• Deadheading: Remove spent blooms or lightly shear to encourage repeat flowering.
• Pruning: Cut back old stems in late winter or early spring.
• Propagation: Divide mature clumps in spring to maintain vigor.

Color Moment

The golden petals and red eye create a glowing sunset effect – especially striking beside purple, blue, silver, and soft peach companions.

Grower Tip

Coreopsis flowers best in bright sun and well-drained soil. Too much shade, rich fertilizer, or soggy ground can weaken the habit and reduce bloom.

What Is Coreopsis grandiflora Solanna™ Sunset Bright?

Description

Coreopsis grandiflora Solanna™ Sunset Bright is a compact perennial tickseed grown for bright, daisy-like flowers and easy-care garden performance. The blooms are golden yellow with a red to burgundy eye, giving each flower a warm sunset center. It delivers the sunny charm gardeners expect from Coreopsis, but in a tidy form that suits both informal plantings and polished borders.

Habit

This Solanna™ selection forms a compact, well-branched mound rather than a loose, sprawling clump. Plants typically reach about 14 to 20 inches tall and 20 to 22 inches wide, making them useful at the front of borders, along paths, in patio containers, and in mass plantings. The rounded shape gives the plant a finished look even before peak bloom.

Flowers

The flowers are the star feature. Solanna™ Sunset Bright produces golden blooms with a rich red eye, creating strong contrast without looking harsh. The Solanna™ series is known for prolonged flowering, first-year bloom, and self-cleaning performance, although occasional deadheading or light shearing can improve appearance and encourage fresh waves of color.

Foliage

The foliage is green, compact, and leafy, forming a neat base for the bright flowers. Because the plant stays relatively low and dense, it is easier to place than taller Coreopsis varieties that may need support from neighboring perennials. Its clean habit also works well in small gardens where every plant must look good up close.

Hardiness and Climate

Solanna™ Sunset Bright is hardy in USDA Zones 4 to 9. It performs best in full sun, average to dry soil, and good drainage. In hot climates, regular watering during establishment helps plants settle quickly. In colder or wetter regions, drainage is especially important because Coreopsis dislikes soggy crowns, particularly in winter.

Landscape Uses

• Sunny borders: Use near the front where its compact size and vivid flowers can be appreciated.
• Containers: Plant in patio pots with drainage holes for months of bright color.
• Pollinator gardens: Grow in groups to attract bees, butterflies, and other beneficial insects.
• Cottage gardens: Pair with airy perennials, herbs, and warm-colored flowers for an abundant look.
• Edging: Repeat along pathways or bed fronts for a neat golden border.
• Mass planting: Plant in drifts for high-impact color with low maintenance.
• Cut flowers: Snip fresh blooms for informal summer arrangements.
• Low-water gardens: Use once established in sunny, well-drained beds with other drought-tolerant perennials.

Pollinator Value

Coreopsis is a dependable choice for pollinator-friendly gardens. Its open flowers provide easy access for bees and butterflies, especially when several plants are grouped together. For best habitat value, combine Solanna™ Sunset Bright with other long-blooming perennials so nectar and pollen are available across the growing season.

Deer and Rabbit

Solanna™ Sunset Bright is commonly described as deer-resistant. No perennial is completely deer-proof, but Coreopsis is not usually a preferred browse. Rabbits may occasionally nibble tender new growth, so protect young plants until they are established.

Toxicity

Coreopsis, commonly called tickseed, is listed by the ASPCA as non-toxic to dogs, non-toxic to cats, and non-toxic to horses. That makes Solanna™ Sunset Bright a reassuring choice for pet-friendly gardens. As with any ornamental plant, pets should not be encouraged to chew or eat garden plants, since large amounts of unfamiliar plant material may cause stomach upset.

Drought Tolerance

Once established, Solanna™ Sunset Bright handles dry spells better than many lush perennials. Water regularly during the first growing season to build a strong root system, then shift to deep, occasional watering during prolonged drought. Container plants need more frequent attention because pots dry out faster than garden soil.

Invasiveness

Coreopsis grandiflora is not generally considered invasive in gardens. Some Coreopsis may self-seed if spent flowers are left in place, but seedlings from named cultivars may not match the parent plant. Deadhead regularly if you want to limit seedlings and keep the planting looking crisp.

Growing Conditions For Coreopsis grandiflora Solanna™ Sunset Bright

Light

Full sun is essential for the strongest flowering and most compact habit. Aim for at least 6 hours of direct sun each day. In too much shade, plants may stretch, flower less, and become more vulnerable to mildew. In sunny, open sites, the flower color is brighter and the mound stays tighter.

Soil

Plant Solanna™ Sunset Bright in average, well-drained soil. It does not need rich ground to perform well. In fact, overly fertile soil can produce leafy growth at the expense of flowers. Sandy loam, amended clay, and ordinary garden soil are all suitable if drainage is good.

Water

Water deeply after planting and keep soil lightly moist while the plant establishes. Once rooted, allow the soil to dry slightly between waterings. Avoid keeping the crown constantly wet, especially in cool weather. In containers, check moisture often during heat waves and water when the top layer of potting mix dries.

Feeding

Coreopsis is not a heavy feeder. In most soils, a light spring compost topdressing is enough. If growing in containers, use a balanced fertilizer sparingly. Too much fertilizer can create soft growth, fewer flowers, and a less compact plant.

Planting, Maintenance, And Propagation

Planting Tips

Plant in spring after frost or in early fall where winters are mild. Space plants about 16 to 22 inches apart, depending on how quickly you want them to fill in. Set the crown at soil level, water well, and mulch lightly, keeping mulch away from the crown to reduce rot risk.

Deadheading and Shearing

Solanna™ Sunset Bright is bred for prolonged flowering, but light grooming keeps it at its best. Remove spent blooms when practical, or shear lightly after a heavy bloom cycle to refresh the mound. This encourages more flowers and prevents the planting from looking tired in late summer.

Maintenance and Pruning

Maintenance is simple. Remove damaged stems, keep weeds from crowding the crown, and cut back old growth in late winter or early spring before new shoots appear. In wet-winter climates, avoid smothering the crown with heavy mulch or debris.

Propagation

Divide established clumps in spring when new growth begins. Division helps maintain vigor and preserves cultivar traits. Seedlings may appear in some gardens, but they may differ from the parent plant in flower color, size, or habit.

Problems And Pests

Solanna™ Sunset Bright is generally easy to grow, especially in full sun and well-drained soil. Most issues come from shade, overcrowding, overwatering, or poor drainage.

• Powdery mildew: Improve airflow, avoid overhead watering, and grow in full sun.
• Leaf spot: Remove affected foliage and water at soil level rather than wetting leaves.
• Crown rot: Prevent with well-drained soil and by keeping mulch away from the crown.
• Reduced flowering: Usually linked to shade, excessive fertilizer, drought stress, or lack of deadheading.
• Short-lived clumps: Divide every few years and avoid winter-wet conditions.
• Aphids: Spray off with water or treat with insecticidal soap if populations become heavy.

Design Ideas and Companion Plants With Coreopsis grandiflora Solanna™ Sunset Bright

Choose companion plants that enjoy full sun, well-drained soil, and average to dry moisture. The best partners either cool the gold-and-red flowers with blue, purple, and silver, or echo the warm sunset palette with orange, peach, terracotta, and yellow.

• Purple flower contrast: Pair with Salvia nemorosa ‘Caradonna’. Its violet-blue spikes and dark stems sharpen the golden flowers and thrive in sunny, well-drained soil.
• Soft blue edging: Add Nepeta racemosa ‘Walker’s Low’. Catmint brings lavender-blue flowers, aromatic foliage, drought tolerance, and a relaxed cushion around Coreopsis.
• Prairie pollinator power: Combine with Echinacea purpurea. Purple Coneflower shares sun, average soil, and dry to medium moisture while extending wildlife value.
• Hot-color harmony: Use Gaillardia aristata. Blanket Flower echoes the gold and red tones for a fiery, drought-tolerant summer display.
• Ferny texture: Mix with Achillea millefolium Milly Rock™ Yellow Terracotta. Compact yarrow adds flat flower clusters in warm tones and loves sunny, well-drained sites.
• Silver and lavender calm: Plant with Lavandula angustifolia ‘Hidcote’. Lavender adds fragrance, bees, silvery foliage, and a refined Mediterranean look.
• Airy late-season haze: Add Salvia yangii. Russian Sage brings drought tolerance, lavender-blue flowers, and height without heaviness.
• More golden Coreopsis texture: Pair with Coreopsis Solanna™ Golden Sphere for a playful yellow-on-yellow combination with different flower forms.

Frequently Asked Questions

Updated: June 2026 • Reviewed by Gardenia Editors