Polyantha Rose 'Phyllis Sherman' Breeding for Disease Resistance and Compact Habit

The patent combines multiple desirable traits from different parent varieties through controlled cross-breeding. The female parent 'BAIpome' contributes continuous blooming, compact size, and glossy foliage, while the male parent 'Mountain Mignonette' contributes double flowers and richer color. The resulting variety integrates all these characteristics into a single unified plant that exhibits continuous blooming with double flowers, compact mounded habit, glossy disease-resistant foliage, and vivid purplish-pink coloration.

The patent achieves local optimization where the plant maintains a compact mounded overall form while producing relatively large double flowers (30-45mm diameter) in dense clusters. The architecture is structured so that multiple large flowers are grouped together in clusters of 6 or more blooms per cluster, creating localized areas of floral abundance that maintain plant compactness while maximizing flower display impact.

The patent creates an asymmetric plant architecture with a dominant central mound form that rises vertically, with branches extending outward at varying heights and angles. The plant maintains a clearly defined mounded silhouette with a higher central portion and gradually lowering peripheral edges, rather than a uniform spreading form. This asymmetric structure provides both visual interest and functional compactness, allowing the plant to cover ground effectively while maintaining an upright compact appearance.