Perennials in pots

As an experiment this winter, I am planning to leave some (very) hardy perennials in their big pots on my back deck to see if any survive the winter.  I have planted perennials in containers before but never had much success with leaving them in their pots for the winter.  I have tried rose bushes and ornamental grasses but apparently they are not hardy enough.  The general rule of thumb is they should be at least two zones hardier than your area to survive in pots instead of in the garden.

So, this season I am trying shrub roses, (much hardier than bushes) false spirea, forsythia and lilac bushes, as well as a plum and a maple tree, all of which grow prolifically in my gardens.  With the exception of the plum tree that might be a bust, the others are reliably hardy for this area (zone 2).  The two mature plums trees in my gardens send up shoots all over the yard so I won’t feel so bad if the one in the pot does not survive.  These subjects of my experiment have all been grown from cuttings in my ICU...

Anything else currently in pots that I wish to save must be brought in for the winter.  This year that will include a beautiful non-hardy ornamental grass that was extremely expensive, too much so to replace each year…

perennials

 

I will keep you posted on their survival rate!

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