Workers at two Long Island advertising agencies spent an afternoon last month planting flowers and restoring a playground at Madonna Heights, a residential and community outreach center in Dix Hills.

Sixteen employees of Sanna Mattson MacLeod and KZS Advertising, both in Smithtown, worked through a drizzle and under threatening skies. Sanna Mattson MacLeod and members of its staff donated topsoil and many of the plantings, while other material was donated by local nurseries and the Town of Smithtown.

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“It was just a wonderful experience,” said Jan Krsanac, marketing director at Sanna Mattson MacLeod. “We had a great time doing it together.

The two companies, members of the ANEW Marketing Group, arranged to do the good deed on June 9 through the Long Island Volunteer Enterprise, an organization that matches companies with nonprofits for one-day projects. Last year, Krsanac said, SMM spend a day cleaning Nissequogue River State Park.

Madonna Heights describes itself as offering “a structured, therapeutic setting for adolescent girls and young women facing a variety of behavioral, social or mental challenges.”

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