As folks in this forum might recall from my Oregon grape question a few months ago, I'm helping my building plan out some new plantings. We are required to plant 6 new trees to replace ones that were cut down while our construction permit was still open (had we waited 3 months to cut them down, this wouldn't be required as they were all very undersized...but The arborist suggested styrax japonicus as one of the smallest Schedule D Part 1 trees. What evergreen shrubs & perennials would pair well for underplantings? They will flank the patios at the NW (sunnier) & NE corner (very shady but will get a couple of hours of direct light in the morning), which are about 18ft wide. I expect that we are going to have to tear out all our landscaping in 10-15 years for a full podium job, so I'm not too worried about the trees getting crowded.