Ficus ‘ESFIMO’ Compact Cultivar With Stable Variegated Foliage

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Solution Overview

Problem

Existing Ficus elastica cultivars lack distinct and stable characteristics such as compact growth habit and unique foliage coloration, which are not consistently maintained across varying environmental conditions.

Innovation Solution

The development of the Ficus cultivar 'ESFIMO', which exhibits a compact growth habit, small broad ovate foliage, and distinctive adaxial and abaxial foliar surface coloration, achieved through asexual reproduction and confirmed over five generations, providing stable and distinct characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If conventional Ficus elastica cultivars are used, then they have larger foliage and more vigorous growth, but they lack distinct and stable characteristics such as compact growth habit and unique foliage coloration

Engineering Contradiction:

Improvestability of characteristicsVSAvoiddistinctiveness of traits

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and propagating a mutant plant with altered growth parameters (compact habit, smaller foliage) and coloration parameters (yellow-green central zone, greyed-orange margins) from the parent 'SCHRIJVERIANA'. Through asexual reproduction over five generations, these parameter changes have been stabilized while maintaining distinctiveness from both the parent and commercial cultivars.

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If Ficus elastica 'SCHRIJVERIANA' is propagated, then it maintains its established characteristics, but it does not exhibit compact growth habit or unique foliage coloration

Engineering Contradiction:

Improvestability of characteristicsVSAvoidgrowth habit and foliage characteristics

Core Design Contradiction:

Stability of the object's compositionVSShape

Solution Approach 1:

The patent applies local quality by highlighting the specific regional differences in foliage coloration between the central zone (yellow-green) and marginal zones (greyed-orange), as well as the distinct compact growth habit. These localized quality differences distinguish 'ESFIMO' from the parent 'SCHRIJVERIANA' while maintaining overall plant structure.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If asexual reproduction is used to propagate the mutant plant, then the unique features become stable and true to type, but the process requires multiple generations to confirm stability

Engineering Contradiction:

Improvestability of characteristicsVSAvoidtime for propagation verification

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by conducting five generations of asexual reproduction and evaluation before finalizing the cultivar description. This preliminary propagation and verification process ensures that the compact growth habit and unique coloration patterns are stable and will be maintained in future propagation, preventing later issues with trait instability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP36930P2<i>Ficus </i>plant name ‘ESFIMO’

Publication Date: 2025.09.02 J VAN GEEST HLDG BV

AI summary

A new and distinct variety of Ficus plant named ‘ESFIMO’ which is characterized by a compact growth habit with broad ovate foliage, cream-colored mature foliage that is flecked with yellow-green and greyed-green and centrally blotched with dark green and greyed-green, and light red main veins that are flecked and striated with light greyed-yellow. ‘ESFIMO’ exhibits the stability of the previously noted characteristics from generation to generation.