Growth of Bolivian sunset ( Gloxinia sylvatica (HBK) Wiehler), Brazilian plume ( Justicia carnea Lindl.), and golden globe ( Lysimachia congestiflora) transplants was evaluated in media containing 25, 50, 75, or 100% compost (derived from biosolids and yard trimmings) as compared to commercial peat-based media. Compost-based media had higher pH, EC, bulk density, particle density and total porosity as compared to peat-based media. The effects of media composition on plant growth and development varied with each species tested. Gloxinia generally were smaller with reduced flower development when grown in compost-based media as compared to peat-based media. However, regardless of media composition, plants were of high visual color and quality. Justicia were similar in size or smaller when grown in compost-based media as compared to peat-based media but flower development was unaffected. However, the visual color and quality of the plants suffered when plants were grown in compost alone. Growth indexes of Lysimachia were similar among media or slightly reduced by 12%. Although, flower development was reduced by 16% in the second trial, plants were still acceptable in terms of visual color and quality, regardless of media composition.