Perennial flowers are a gardener’s best friend, returning year after year with little maintenance. But some bloom for on ...

This widely adapted perennial legume is grown in every state in the US ... Stipules are large anointed. Flower is commonly purple but may vary among shades of white, yellow and purple. Deep taproot.

Both varieties produce a moderate amount of purple flower spikes in summer. All lamb’s ears are among the most heat-tolerant of perennials, and they’re hardly ever bothered by deer or rabbits.

But everybody likes lavender (Lavandula). It is one of the few perennial plants in the blue, purple and mauve hues. And ...

Some of the best perennials and best spring flowering ... With its fluffy pink-purple flower heads on top of rigid, upright ...