Plants I'd like to Plant

A list, in no particular order, of plants I'd like to work into my kinda bare back yard, as soon as I have some free time:

• Viburnum "Mohawk."  These smell really heavenly right now.
  
• Viburnum "Dawn." Likewise.
  
• Helleborus foetidus.
  
• Helleborus nigrens.
  
• Helleborus whateverus.  I just love them.  All of them.
  
• Blue Flag Iris.
  
• Hammalacidae, Forthergilla Major or "Mount Airy"
  
• Lilacs?
  
• echinacea purpurea.
• Oak Leaf hydrangeas.  And maybe a Lady in Red, if I can get beyond all the time and effort I put into the last Scarlet Strumpet that cursed/graced my garden.
  
• Hostas -- sum & substance, blue angel.
  
• Trillium.
• Stachys.
• Ghost ferns or painted lady ferns.
• epimedium.
• dicentra.
• Hens & chicks.
• wood poppy.
• Some native azaleas, maybe a rhododendron or two.
• forsythia

Really, this is just a list of my favorite botanical things.  But I have excluded those that won't grow this far north, such as my beloved tea olives.