English garden designer Sarah Price—who made a splash at the Chelsea Flower Show in 2007 and 2008—returns to the spotlight with a new garden for the 2012 Chelsea Flower Show. Our interview with this garden designer who brings a subtle artistry to her gardens and who says, "I love the ephemeral nature of garden design. It's a transient thing and is not completely under your control."
Photographer Lori Nix builds a post-apocalyptic city, in which human inhabitants have retreated, and nature has begun to creep in. We ask the artist about the plants that are reclaiming these transformed urban spaces.
Matt Ritter, the author of A Californian's Guide to the Trees Among Us, and a botany professor, talks about the difference between the cultivated and invasive trees, which trees are taking over California, and why poor neighborhoods seem to have fewer types of trees.