Janssens Junior Orangerie GreenhouseJunior Orangerie Glass Greenhouse The Junior Orangerie is the most unusual and most appealing greenhouse on the market today. The elegant black framework, Old World Style, and European engineering combined with 5 side walls and 8 2 peak height give the gardener a comfortable 114 square feet of interior workspace. The greenhouse comes with 2 automatic roof openers, a roof gutter system, and sliding glass door. This is truly a must see, must have