Stems, 639 Vanderbilt Avenue (Photo by Pamela Wong/BKLYNER)Prospect Heights – Following a temporary Department of Health & Mental Hygiene-imposed shut-down [/developing-sycamore-closed-temporarily-doh-inspection/] earlier this summer, the flower shop Stems [http://www.stemsbrooklyn.com] has moved from the space it shared with the beloved Ditmas Park bar, Sycamore [http://www.sycamorebrooklyn.com]