Hosta Royal Wedding Variegated Foliage Heat Tolerance
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Solution Overview
Problem
Current Hosta cultivars with fragrant flowers and variegated foliage often have unstable traits, limited heat and sunlight tolerance, and require significant vernalization, whereas 'Royal Wedding' offers a stable, compact, and heat-tolerant variety with unique foliage and flower characteristics.
Innovation Solution
Hosta 'Royal Wedding' is a naturally occurring mutation with wider variegated margins, thicker foliage, and white fragrant flowers, propagated through division and tissue culture, retaining its traits across generations, and exhibiting improved heat and sunlight tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional Hosta cultivars with fragrant flowers and variegated foliage are used, then aesthetic appeal is improved, but trait stability deteriorates
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a specific mutation variant with altered genetic parameters that result in stable expression of desired traits. The cultivar 'Royal Wedding' exhibits consistent variegation patterns, flower color, and fragrance characteristics across generations, representing a stabilized parameter set that resolves the instability issue of traditional variegated hostas
2Ease of manufacture
If traditional Hosta cultivars are used, then fragrance and variegation are improved, but heat and sunlight tolerance deteriorates
Solution Approach 1:
The patent applies local quality by developing a cultivar with differentiated leaf structure that provides localized protection. The thicker foliage and altered leaf anatomy create local microenvironments that reduce heat stress and UV damage while maintaining the desired fragrance and variegation traits in specific plant regions
3Ease of manufacture
If traditional Hosta cultivars are used, then floral characteristics are improved, but vernalization requirements increase
Solution Approach 1:
The patent applies preliminary action by selecting a mutation variant that has pre-adapted physiological characteristics reducing cold requirement needs. The cultivar 'Royal Wedding' exhibits reduced vernalization requirements due to inherent physiological adaptations that allow earlier or reduced cold exposure needs while maintaining proper flowering timing and floral quality
4Stability of the object's composition
If Hosta 'Royal Wedding' is propagated through tissue culture, then trait stability is improved, but propagation complexity increases
Solution Approach 1:
The patent applies copying by using tissue culture techniques to create genetically identical copies of the mutant plant. This asexual propagation method produces clones that precisely replicate the unique variegation, fragrance, and structural traits of the original mutation, ensuring trait stability across multiple generations through genetic copying
Data Source
AI summary
A new and distinct Hosta plant named ‘Royal Wedding’ with foliage having blades of wide variegated creamy-white to near white margins, and dark center with minor intermediate feathering colors. The plant habit is compact and rounded in habit with sweetly fragrant white flowers just above foliage in mid to late summer.