Greatly concerned with the conservation of its natural environment and focused on good quality of life for its population, Rosemère began already the mid-seventies to convert open urban spaces into parklands. Today Rosemère proudly boasts as many as twelve neighbourhood parks and two school playgrounds.

Throughout the eighties, highest priority was given to the development and expansion of residential areas and the quality of the environment. From 1981 to 1986, the population grew by 11.5 percent, and in the five years that followed, from 1986 to 1991, the population soared by another impressive 31.6 percent. Today Rosemère has some 12,500 inhabitants. During that time, public services were evolving, the municipality was adapting itself, and numerous new volunteer organizations came into being.

In 1990, Rosemère's country-like features and rural charm were officially recognized throughout Quebec. In fact, Rosemère won first prize in two provincial contests, Ville verte and Ville fleurie. Spurred on by these two victories, Rosemère presented a general plan for the development of more parklands and green spaces.

New by-laws were passed to further encourage and intensify environmental protection efforts. Rosemère was one of the first municipalities to control the use of pesticides. Composting, recycling, selective waste collection and many other environment-friendly programs were being implemented. Rosemère also became an active partner in the RCM's integrated waste mangement project.

In 1993, Rosemère once more won first prize in the provincial Ville fleurie Contest and was awarded with two Iris in the 1994 Excellence class. Over the years, Rosemère had naturally developed into a verdant city. Nature-study trails were built, and urban structures as well as infrastructures were upgraded to come in line with the present-day situation. The Police Station, Fire Prevention Department, and Public Works Departments overhauled and renewed their equipment to be able to respond to the future needs of a growing population expected to reach the 15,000 mark some time soon.

In 1995, Rosemère won two Iris d'or in the Excellence class of the Villes, villages et campagnes fleuries du Quebec Contest. In the sameyear, the town was awarded first prize in the first national Communities in Bloom Contest (5,001 to 30,000-inhabitant category) and received recognition for the quality of its lovely neighbourhood parks. In 1996, Rosemère carried off three more Iris d'or in the Excellence class and won second prize in the 10,000 to 25,000-inhabitant category of the international Nations in Bloom Contest. In 1998, Rosemère won yet another three Iris d'or in the Excellence Class and four Flowers in the Communities in Bloom Contest, Excellence Class. Among the many rewards Rosemère is boasting, the municipality is also very proud of its award-winning floral arrangements.

In 1998, Rosemère won the Award for Excellence in landscape design in the 10,000-20,000 population category for the Marais Bouthillier Bridge.

As well, for another consecutive year, Rosemère won Three Irises in the Villes, villages et Campagnes Fleuries du Québec Contest and Four Flowers in the Communities in Bloom Competition. Rosemère also distinguished itself for its stewardship in environmental matters.

In February 2000, the Town of Rosemère was once again proclaimed Winner of the 1999 Fleurir le Québec Contest in the category of municipalities with 10,000-20,000 inhabitants (see News Release of March 2000). It should be noted that the Fleurir le Québec Contest has now replaced the former Villes, villages et Campagnes Fleuries du Québec Contest.

In spite of urban development, Rosemère was able to preserve its rural character by designating large areas of woodlands as green spaces, thus offering its residents an exceptional quality of life. In the Canadian Communities in Bloom Contest, the jury not only awarded Rosemère with first prize—Five Flowers—but also made special mention of the City's outstanding environmental efforts, in particular composting. Rosemère was classed in the Excellence Category equivalent to the highest category of the previous contests.