The genusGenus Rudbeckia has long played a very important role in ornamental plantOrnamental plant cultivationCultivation and breedingBreeding. The ever-expanding varietyVariety range of many of its speciesSpecies is also suitable for use as potted ornamental plantsOrnamental plant and bedding plants, thus it can play a very important role in the management of urban green spaces. The development of urban vegetation is a growing problem due to increasing climate changeClimate change. However, several speciesSpecies of the genusGenus are capable of combating climate changeClimate change while preserving their decorative value. Rudbeckia speciesSpecies can be easily integrated into the urban environment, as their sizesSize vary, their yellow, orange, red or brown flowersFlower are striking and have great decorative value. They can be associated with both annualAnnual and perennialPerennial plants. Currently, in addition to phenotypic properties, abiotic stressAbiotic stress toleranceTolerance is a very important breedingBreeding goal. The Rudbeckia speciesSpecies claim a place among ornamental plantOrnamental plant breeders and growers, so it is important to get to know the genusGenus more closely. The chapter covers botanical characteristics, environmental stress toleranceTolerance and, within this, their response to the effects of climate changeClimate change. Furthermore, their suitability in terms of urban green space management is mentioned—a very important part of which is breedingBreeding. There are several ways of breedingBreeding, including the classic breeding methodsBreeding methods, which are also carried out in Hungary at the Hungarian University of AgricultureAgriculture and Life Sciences, but modern biotechnological methods are also appearing. In addition to the literature related to breedingBreeding, the chapter includes the most important speciesSpecies and the chapter is also supplemented with possible interesting facts. Our aim is to present the genusGenus from the point of view of botanyBotany, application and breedingBreeding, mentioning and summarizing both the early and the latest literature references.