Coreopsis Grandiflora 'Early Sunrise' - Instant Joy
Coreopsis grandiflora ‘Early Sunrise’ brings a burst of sunshine to the summer garden with its layers of golden-yellow petals that radiate from compact, upright clumps. This long-blooming perennial, also known as tickseed, begins flowering in early summer and continues through much of the season, often reblooming if spent blooms are removed. Its cheerful color and tidy form make it one of the most dependable choices for bright borders, pollinator gardens, and naturalized plantings. Because it tolerates heat, humidity, and lean soil, Coreopsis is both low maintenance and ecologically valuable, supporting bees and butterflies without needing fertilizer or frequent watering.
Applications in the Garden
Perfect for sunny borders and mass plantings where continuous color is desired
Excellent choice for pollinator gardens, drawing bees and butterflies all summer
Works well in containers or small garden beds due to its compact growth habit
Pairs nicely with purple coneflowers, salvias, and ornamental grasses for contrast
Suitable for xeriscapes or low-water landscapes because of its drought tolerance
Provides a bright, natural look when interplanted with native wildflowers
Planting Tips - Coreopsis
Select a site with full sun for best flowering and sturdy growth
Plant in well-draining soil; sandy or rocky soils are ideal
Avoid over-fertilizing, which can lead to floppy stems and fewer blooms
Space plants about 12–18 inches apart to encourage airflow and prevent mildew
Water regularly after planting until established, then reduce watering gradually
Deadhead consistently to extend the bloom season and maintain a neat appearance
Plant Biography and Growing Environment
Botanical Name: | Leucanthemum Superbum |
Variety Name: | Polaris |
Height: | 30″ |
Hardiness Zone: | 4-9 |
Sun or Shade: | Full sun to partial shade |
Plant Classification: | Perennial |
Planting Season: | Spring |
Bloom Season: | Summer |
Bloom Cycle: | Only blooms once |
Bloom Duration: | 4-6 weeks |
Planting Depth: | 2″-3″ |
Soil Requirements: | Fertile, moist, well-draining soils |
Water Requirements: | Average |
Troubleshooting - Coreopsis
Flopping stems – often caused by excess fertilizer or too much shade; reduce feeding and ensure full sun exposure
Powdery mildew – can develop in humid or crowded conditions; improve air circulation and remove affected foliage
Short bloom period – occurs if spent flowers are not removed; deadhead regularly to promote new buds
Yellowing foliage – usually from overwatering or poor drainage; let soil dry slightly between waterings
Sparse growth – older plants may become woody at the base; divide every few years to rejuvenate
FAQ - Coreopsis
Q: Is Coreopsis deer resistant?
A: Yes. Deer typically avoid Coreopsis due to its slightly aromatic foliage.
Q: How tall does Coreopsis ‘Early Sunrise’ grow?
A: Plants generally reach 12–18 inches tall and form dense mounds about the same width.
Q: Is Coreopsis toxic to pets or people?
A: Coreopsis is non-toxic to humans and pets, making it a safe choice for family gardens.
Q: Will Coreopsis bloom all summer?
A: Yes. With good sunlight and regular deadheading, it can flower from early summer into early fall.