For taller perennial plants that can always be relied on to inject a punch of color in summer borders and pots, red hot pokers, or Kniphofia spp., are a strong option. Native to sub-Saharan Africa, ...

A group of torch lilies (or red hot poker plants) blooming - Annadokaz/Getty Images Spring is one of the best times of the year for dividing perennials, and if you're running around your yard tackling ...