Heucheras (the purple stuff in pic#1) are a good bet. Maybe add some Actea/bugbane for height and tiarella for spring flowers. That should get you some flowers each season and they all come in a variety of leaf colors for interest the rest of the year. Then, you can add some bulbs for more flowers.
Heucheras have leaf colors from orange to dark purple to lime green.
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Fridge in middle?
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