From left: Joan Dombroski, Marilyn Stone, Deborah Wood, and Hugh Robinson, with Juno, clean up Hayes Park at North 15th Street and North Lincoln Street, across from Arlington Science Focus Elementary School. The four are Tree Stewards, and donated their time pulling invasive ivy from trees, weeding out Bush Honeysuckle, cutting down volunteer Mulberry trees that were insinuating themselves into tennis court fences, and pruning trees that need a trim. Behind them is the pile of ivy and branches they were able to take out of the park in two hours on Thursday, March 15. Juno helped carry sticks. To join the Tree Stewards or volunteer to help trees, see www.treestewards.org.