Coreopsis Garnet Cultivar Compact Habit Deep Rose Color
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Solution Overview
Problem
There is a need for a new Coreopsis cultivar that offers distinct flower color, compact habit, and excellent vigor, differing from existing varieties like 'Heaven's Gate' and 'Limerock Ruby', with improved characteristics such as deep rose flowers with a dark center and a dense, compact growth habit.
Innovation Solution
The development of the Coreopsis 'Garnet' cultivar, resulting from an open-pollinated cross between Coreopsis 'Heaven's Gate' and an unknown proprietary Coreopsis, exhibiting daisy-type flowers, deep rose with a darker center, grass green foliage, compact habit, and excellent vigor, reproduced through asexual propagation methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If Coreopsis 'Heaven's Gate' is used as seed parent, then pink flowers with dark center are produced, but the new cultivar achieves deep rose flowers with darker center
Solution Approach 1:
The patent applies parameter changes by crossing Coreopsis 'Heaven's Gate' with an unknown proprietary Coreopsis to produce a new cultivar with altered flower color parameters - specifically deep rose with darker center compared to the parent's pink with dark center, achieving enhanced color intensity and hue
2Shape
If Coreopsis 'Heaven's Gate' is used as seed parent, then larger flower size is produced, but the new cultivar achieves smaller and tighter habit
Solution Approach 1:
The patent applies parameter changes by selecting for compact growth parameters in the cross between Coreopsis 'Heaven's Gate' and unknown proprietary Coreopsis, producing a cultivar with shorter internodes, smaller overall plant size, and tighter branching habit while maintaining flower quality
3Shape
If Coreopsis 'Limerock Ruby' is used for comparison, then ruby red flowers are produced, but the new cultivar achieves deep rose with dark center
Solution Approach 1:
The patent applies parameter changes by precisely controlling the cross between Coreopsis 'Heaven's Gate' and unknown proprietary Coreopsis to achieve a specific color parameter combination - deep rose with darker center - that distinguishes it from both parent varieties and achieves consistent color expression across generations
4Adaptability or versatility
If open pollinated cross is performed, then genetic diversity is achieved, but asexual propagation is required to maintain true-to-form characteristics
Solution Approach 1:
The patent applies copying by using asexual propagation methods (cuttings and tissue culture) to create genetically identical copies of the new Coreopsis cultivar, ensuring true-to-form characteristics are maintained across all propagules and eliminating genetic variation that would occur with seed propagation
Data Source
AI summary
A new and distinct Coreopsis plant named ‘Garnet’ characterized by daisy-type flowers that grow to 4.5 cm in diameter, flowers that are deep rose with a darker center, grass green foliage on short stems, flowering for the whole summer, a dense, compact, mounding habit, and excellent vigor.