Would anyone suggest the best slow growing and smallest dwarf plants preferably conifers for my small rock garden in zone 6. I wanted to try a woodsy effect rather than a floral effect for this area in front of my house. In the middle of the rock garden I have a circle of large rocks and inside the rocks I have ornamental Grass. Formerly I had hens and chicks type of succuleents outside the circle of rocks. The area gets full sun. I find the succulents kind of boring and am looking for something that won't grow too big or spread out all over. Almost like minature plants. Any ideas so I can get a variation in dwarf conifers.