Heucheras and heucherellas come in a huge range of colors and many different shapes. They are easy to grow (happy in the garden or in containers) and easy to propagate, they provide evergreen interest when other plants are dormant, and they are useful for textural contrast or 'transition' planting between clumps of brightly colored flowers. Some are happy in sun or shade, others prefer shade or semi-shade.
Heuchera can be a challenge in my zone 3 garden but I keep trying! The more hardy, simpler Coral Bells have better survival, but those fancy leaved Heuchera keep calling me lol. They can be expensive annuals so I try to get them at a bargain price. Will see what has survived come spring; I'm always hopeful!
Debbie, try propagating a few from each plant before winter - they root really easily if you pull off small offshoots, no need for any piece of root from the parent plant. Then keep the 'babies' indoors over the coldest months. We usually do that 'just in case' or in order to increase our stock of favourite plants. Great photos!