Time to rehearse! Trolls Skimpa and Blompa will  present “The Trolls and the Tree” at Somerville Community Growing Center on June 2nd. Looking back at the first photos of Ann Wynne, Peter Lehman and I  working on this green-themed show, we’re wearing masks.  We developed the show during the pandemic and only performed outside — at Arlington EcoFest, at Lexington Community Farm, at Old Schwamb Mill. Rehearsing is easier when you’re not afraid of getting sick.