Ceanothus FIT02 Cultivar with Purple Foliage and Vigorous Growth

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Solution Overview

Problem

There is a need for a new and distinct cultivar of Ceanothus that exhibits unique purple evergreen foliage and a vigorous bushy growth habit, suitable for temperate climates as an ornamental patio or contrast plant, which can survive mild winters and has stable and uniform foliage color.

Innovation Solution

The cultivar 'FIT02' of Ceanothus griseus var. horizontalis, discovered as a branch sport in a nursery-grown batch of Ceanothus griseus var. 'Autumnal Blue', is propagated through cuttings, showcasing chocolate brown and dark purple foliage, with a bushy and upright growth habit, and is suitable for temperate climates, surviving mild winters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a new cultivar with unique purple evergreen foliage is developed through spontaneous mutation, then foliage color uniqueness is improved, but genetic stability and uniformity across propagations may be compromised

Engineering Contradiction:
Improvefoliage color uniquenessVSAvoidgenetic stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The inventor performed preliminary selection and evaluation of the spontaneous mutant plant before propagation, assessing its foliage color stability and growth characteristics over time. This preliminary action ensured that only plants with stable genetic expression were selected for propagation, preventing genetic instability from being introduced into the cultivar population

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The unique foliage color trait was copied through asexual propagation via cuttings, which preserves the exact genetic composition of the parent plant. This copying method ensures that the unique purple evergreen foliage is replicated uniformly across all propagations without genetic variation, maintaining both uniqueness and stability

Inventive Principle:
Principle #26Copying

2Ease of manufacture

If the cultivar is selected for vigorous bushy growth habit, then ornamental value is improved, but plant size control becomes more difficult

Engineering Contradiction:
Improveornamental valueVSAvoidplant size control
Core Design Contradiction:
Ease of manufactureVSLength of moving object

Solution Approach 1:

The cultivar exhibits local quality in its growth pattern, with dense branching concentrated in the lower and middle portions of the plant while the upper portions maintain a more open structure. This localized density variation provides both the vigorous bushy appearance for ornamental value and natural size control, preventing the plant from becoming uniformly dense and difficult to manage

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The plant's growth habit is dynamic rather than static, with the vigorous bushy growth occurring primarily during the active growing season while natural pruning and dieback occur in winter. This dynamic growth pattern allows the plant to achieve ornamental value during favorable periods while naturally controlling size through seasonal cycles

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUSPP20754P3Ceanothus plant named `FIT02`
Publication Date: 2010.02.16 FITZGERALD PATRICK

AI summary

A new cultivar of Ceanothus named ‘FIT02’ that is characterized by chocolate brown and dark purple mature foliage, an upright, vigorous habit, and small clusters of flowers in Summer. In combination these traits set ‘FIT02’ apart from all other existing varieties of Ceanothus known to the inventor.