Most asters are fall bloomers, and many species are quite hardy and sport flowers up to ... the sunflower family is an ...
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8 frost hardy perennials ideal for northern gardens – these plants can survive freezing winters and still come back each springPeonies die down for winter but are very frost-hardy perennials that can withstand ... Most notably, New England asters and daylilies can also withstand winters down to US hardiness zone 3 and ...
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