Hydrangea Paniculata Cultivar HP220902 Compact Habit and Dense Inflorescences
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Hydrangea paniculata cultivars lack compact and freely-branching varieties with dense, showy sterile flowers that maintain color change and good garden performance across varying environmental conditions.
Innovation Solution
A new cultivar, 'HP220902', resulting from a cross-pollination between proprietary selections of Hydrangea paniculata, exhibits a compact, upright growth habit, sturdy stems, dense inflorescences with yellow-green flowers that turn purplish-red in autumn, and superior garden performance, achieved through asexual reproduction by vegetative tip cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Hydrangea paniculata cultivars are used, then they have established growth patterns and reliability, but they lack compact habit and dense flowering characteristics
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific morphological parameters including compact plant habit, stem thickness, inflorescence density, and flower size. The cultivar 'HP220902' exhibits optimized parameters such as a compact upright habit, stems 2-4 mm in diameter, and dense inflorescences with 50-150 flowers per panicle, representing deliberate parameter optimization to resolve the contradiction between novel shape characteristics and reliable garden performance.
2Adaptability or versatility
If existing Hydrangea varieties are used, then they have proven adaptability, but they lack the combination of compact growth and showy sterile flowers
Solution Approach 1:
The patent employs self-service through asexual reproduction by vegetative tip cuttings, allowing the cultivar to propagate itself while maintaining genetic uniformity and stable expression of compact habit and dense flowering traits. This method eliminates the need for repeated complex cross-breeding programs and ensures reliable propagation of the optimized trait combination across generations.
3Stability of the object's composition
If traditional breeding methods are used, then they maintain genetic diversity, but they produce variable offspring that do not consistently exhibit desired traits
Solution Approach 1:
The patent applies copying through vegetative propagation by tip cuttings, creating genetically identical copies of the selected parent plant. This ensures that the optimized traits of compact habit, sturdy stems, and dense inflorescences are replicated exactly in each new plant, providing consistent trait expression without the variability inherent in sexual reproduction.
4Quantity of substance
If Hydrangea cultivars with large inflorescences are selected, then they have showy flowers, but they tend to have weaker and less sturdy stems
Solution Approach 1:
The patent resolves this contradiction through parameter optimization by selecting for both high flower number (50-150 sterile flowers per inflorescence) and adequate stem thickness (2-4 mm diameter). The balanced parameter combination in 'HP220902' achieves dense, showy inflorescences while maintaining stem strength sufficient to support the flower weight, unlike cultivars that prioritize flower quantity at the expense of stem strength.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘HP220902’, characterized by its relatively compact, upright to somewhat outwardly spreading and rounded to conical plant habit; moderately vigorous growth habit and moderate growth rate; freely branching habit with strong, thick and sturdy stems; freely and uniformly flowering habit; large inflorescences with numerous yellow green-colored sterile flowers that become purplish red in color in the autumn; and good garden performance.