Each year, the horticulture staff plants 3 million bedding plants and annuals.

They also mainitain 4 million shrubs, 13,000 roses and 200 topiary.  Visiting WDW, you can see changes in seasons with this landscaping as well. 

This is one job at Disney that would be so interesting, but I don't have a green thumb, and can barely keep our grass alive, so I would only be useful if they wanted someone to grow weeds, but my friend Martha might want to consider this for her future career path.