As summer settles in, the heat and, often, humidity stresses plants so they don't look as bright as we'd like. Here are 11 plants that flourish during the heat of summer looking strong and bright in the yard. Pow Wow Wild Berry Coneflower - Rich pinks keep color summer to frost Lemon Ball Sedum - Neon yellow foliage holds color not only summer...but year round Little Lace Russian Sage - Fluffy purple blooms are gorgeous summer to frost Little Honey Hydrangea - Brilliant yellow to green foliage is showy all summer Winecraft Black Smoketree - Striking deep wine to black foliage with flower...