A mainstay in shade garden plants for decades ... it does have some pretty fine-looking blue-purple flowers from midsummer to fall. Spiderwort (Tradescantia) is also tough, needing no help ...

These shade plants aren't just great for wildlife ... for a range of pink and purple hues. 2. Cardinal flower Taylor Kennedy Frenchi, a conservation biologist at Texan by Nature, says, 'One ...