Calathea Cultivar With Stable Variegated Foliage and Broad Habit

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Solution Overview

Problem

Existing Calathea lietzei varieties lack distinct and stable variegated foliage patterns and broader growth habits, limiting their aesthetic and horticultural appeal.

Innovation Solution

The introduction of the Calathea 'HGV25' cultivar, which exhibits a unique variegated foliage pattern and broader growth habit, achieved through asexual reproduction and stable propagation, providing consistent and visually striking characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional Calathea lietzei varieties are cultivated, then they maintain standard growth patterns, but they lack distinct variegated foliage patterns and broader growth habits

Engineering Contradiction:

Improvefoliage pattern and growth habitVSAvoidstability of variegation

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The patent applies local quality by introducing specific variegation patterns (greyed-green striations along interveinal areas, greyed-orange rings on abaxial surface) to specific regions of the foliage. This creates distinct visual characteristics in particular areas of the plant without affecting the entire plant's growth, thereby achieving both aesthetic improvement and stable reproduction of these localized features through asexual propagation.

Inventive Principle:

Principle #3Local quality

2Reliability

If asexual reproduction is used to propagate Calathea 'HGV25

Engineering Contradiction:

Improvestability of characteristicsVSAvoidenvironmental adaptability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent inverts the conventional approach by first establishing genetic stability through asexual reproduction to preserve the unique variegation pattern, then demonstrating that this genetically stable plant can adapt to varying environmental conditions. The stable genotype serves as the foundation that enables consistent phenotypic expression across different environments, rather than selecting for environmental adaptability first.

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If Calathea 'HGV25' is grown under varying environmental conditions, then phenotypic variation occurs, but genotypic stability is maintained

Engineering Contradiction:

Improveenvironmental toleranceVSAvoidphenotypic consistency

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The patent segments the analysis of plant characteristics into genotypic and phenotypic levels. By using asexual reproduction to fix the genotype, the patent ensures that the underlying genetic blueprint remains stable. The phenotypic variations observed under different environmental conditions are superficial and do not affect the core genetic identity, allowing the plant to tolerate environmental variability while maintaining its distinctive variegation pattern through stable inheritance.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUSPP37336P2<i>Calathea </i>plant named ‘HGV25’

Publication Date: 2026.03.17 GEBR VALSTAR BEHEER

AI summary

‘HGV25’ is a new and distinctive variety of Calathea plant which is characterized by having a broader growth habit when compared to other varieties of the same species, a green adaxial laminar surface with a variegation pattern consisting of a broadly and irregularly outlined midrib colored very light green to greyed-green and greyed-green striations along the interveinal areas of the distal half of the lamina, a dark greyed-purple lower foliar surface with which transitions to dark green towards the margins and an irregular greyed-orange ring present. ‘HGV25’ has shown to have the stability of all characteristics from generation to generation.