Heuchera Grape Timeless Foliage Color and Flowering Duration
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Solution Overview
Problem
Existing Heuchera cultivars lack a combination of distinctive foliage characteristics and prolonged flowering periods with compact, vigorous growth habits, leading to a need for a new cultivar that exhibits medium-sized, glossy leaves with purplish-red and greyed-purple coloration and bright, rosy-pink flowers on dark purple stems.
Innovation Solution
Heuchera 'Grape Timeless' is a hybrid cultivar with medium-sized, flat, glossy foliage that begins as purplish-red and develops a greyed-purple overlay, featuring shallowly dissected leaves and compact, deep burgundy flower panicles that bloom for fourteen weeks, combining traits not found in its parents or other coral bells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If existing Heuchera cultivars are used, then flowering period is extended, but foliage characteristics are not distinctive enough
Solution Approach 1:
The patent applies local quality by creating distinct foliar zones with different colors and textures - the foliage features a purple base color with silver-grey veining and spotting, while the flower panicles are deep burgundy with rosy-pink blooms. This localized differentiation of characteristics allows the plant to have both distinctive foliage and prolonged flowering, resolving the contradiction between these two traits.
2Shape
If existing Heuchera cultivars are used, then foliage coloration is achieved, but growth habit is not compact and vigorous
Solution Approach 1:
The patent utilizes parameter changes by controlling the physical and chemical parameters of plant growth to achieve a compact, vigorous growth habit. The cultivar displays dense, compact rosettes with upwardly arching leaves and robust flower panicles, indicating optimized growth parameters that combine compactness with vigor, thus resolving the contradiction between foliage coloration and growth habit.
3Productivity
If existing Heuchera cultivars are used, then compact growth habit is achieved, but flowering duration is insufficient
Solution Approach 1:
The patent applies continuity of useful action through the prolonged flowering period that spans from early summer into fall (approximately 14 weeks). The flower panicles continue to produce blooms throughout this extended period, maintaining continuous flowering action rather than a brief seasonal display, thus resolving the contradiction between compact growth habit and flowering duration.
Data Source
AI summary
The new and distinct hybrid of Heuchera plant named ‘Grape Timeless’ with medium-sized, shallowly lobed, glossy foliage with rounded apices and lobes. Tightly-branched, upright panicles are produced from early summer to early fall for about fourteen weeks displaying large, bright, rosy-pink flowers. The new plant has a compact habit, is vigorous and produces showy, long-flowering, herbaceous, perennial mounds of leaves beginning the season purplish-red and developing a greyed-purple overlay and dark charcoal-purple surrounding the veins, effective as a specimen plant, en masse, or as a container plant in the landscape.