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Proceedings of the International Plant Propagator's Society

Vol. 54

Title:
Hardy Shrub Rose Research Trials

Author:
Laura G. Jull

pp: 429-433

Abstract:
BACKGROUND AND RATIONALE

Roses are among the most popular plants in the United States among amateur and professional gardeners. Traditionally garden roses (floribunda, grandiflora, and hybrid tea) have attracted the majority of market attention, however, the care and attention required to grow them successfully has spawned a demand for rose taxa that require less intensive management, i.e., hardy shrub roses. The climatic conditions of the upper Midwest can make garden rose culture a challenge. High summer humidity and sub-zero winter temperatures can cause numerous disease problems and lack of winter hardiness. In addition, homeowners and green industry professionals would like roses that have a reduced reliance upon pesticides without sacrificing plant vigor, health, and flowering.

Characteristics of hardy shrub roses such as cold hardiness, repeat flowering, and pest resistance make them attractive choices for modern landscapes, yet not all cultivars exhibit these desirable

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