Coreopsis Firefly Compact Growth and Flower Color Breeding
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Solution Overview
Problem
Existing Coreopsis cultivars lack compact, hardy, and consistently flowering varieties with distinct darker yellow flowers and red centers for landscape and container use in sunny sites.
Innovation Solution
Development of the 'Firefly' Coreopsis cultivar through controlled breeding, characterized by compact growth, larger and darker yellow flowers with red centers, and excellent vigor, achieved via asexual propagation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If Coreopsis cultivars are bred for compact growth and hardiness, then they become suitable for landscape and container use, but they may lose flower size or flowering duration
Solution Approach 1:
The breeding program systematically altered multiple genetic parameters simultaneously to achieve compact growth (35 cm width, 27 cm height) while maintaining extended flowering duration (June through frost). The cultivar 'Firefly' demonstrates that changing growth habit parameters does not necessarily sacrifice flowering duration when proper selective breeding is applied.
2Area of moving object
If Coreopsis cultivars are bred for larger flowers, then they become more visually striking, but they may lose compact growth habit
Solution Approach 1:
The cultivar 'Firefly' exhibits local quality differentiation where the flowering portion (4 cm diameter flowers) is significantly larger relative to the compact overall plant size (27 cm height). This creates a high flower-to-plant ratio that delivers visual impact in a compact form, suitable for containers and borders.
3Ease of manufacture
If Coreopsis cultivars are bred for darker flower color, then they become more distinctive, but they may reduce adaptability to different environments
Solution Approach 1:
The cultivar 'Firefly' was bred with specific color parameters (dark yellow ray florets, red disc florets) while simultaneously selecting for environmental hardiness (USDA Zones 6-9). The dark coloration is maintained across varying environmental conditions, demonstrating that color intensity and environmental adaptability are not mutually exclusive when proper breeding selection is applied.
Data Source
AI summary
A new and distinct Coreopsis plant named ‘Firefly’ characterized by daisy-type inflorescences that grow to 4 cm in diameter, inflorescences that are bright yellow with dark red eyes, hardy to Zone 6 (maybe lower), grass green foliage on short stems, flowering for the whole summer, a very compact, mounding habit, and excellent vigor.