What perennials thrive in zone 5a?
by
Sue
Nothing I plant seems to grow more than two seasons. It is dry here and winters can get as cold as -35 F.
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Try planting perennials at least one zone colder then your winters.
I have always had good luck with lilies of all sorts, tulips and daffodils, bee balm, shasta daisies, black eyed susans, hardy hibiscus, lilac bushes, astilbe, hostas and ferns.
It should work. The problem is every ones planting zones have changed but the nurseries do not give that information.Just remember not all perennials regardless will survive.