The Hardiest of Hardy Perennials. Generally speaking, a plant is classified as a perennial if it can survive to Zone 7. Above that range, plants become tender perennials or annuals. For the purpose of this article, we will only consider the "hardiest" of hardy perennials, plants that are hardy to Zones 4 and lower (or higher in latitude). The plants on this list are definitely tough enough to survive your area's worst winters.

The Hardiest of Hardy Perennials. Generally speaking, a plant is classified as a perennial if it can survive to Zone 7. Above that range, plants become tender perennials or annuals. For the purpose of this article, we will only consider the "hardiest" of hardy perennials, plants that are hardy to Zones 4 and lower (or higher in latitude). The plants on this list are definitely tough enough to survive your area's worst winters.

Ranunculus Asiaticus White; Hardy, perennial. Thrives in sun or shade with moist but well-drained soil. A good choice for borders, pots and containers.

Ranunculus Asiaticus White; Hardy, perennial. Thrives in sun or shade with moist but well-drained soil. A good choice for borders, pots and containers.

Candytuft: Hardy evergreen perennial ground cover for zones 3-9. - Just planted this by my front steps

Candytuft: A garden must-have!

Candytuft: Hardy evergreen perennial ground cover for zones 3-9. - Just planted this by my front steps

Hardy perennials are those that will take a freeze and come back for at least three seaons. These are my top 14 picks that will almost all grow from Maine into the deep South. thegardeningcook.com

Hardy Perennials - My Top 14 Favorites

Hardy perennials are those that will take a freeze and come back for at least three seaons. These are my top 14 picks that will almost all grow from Maine into the deep South. thegardeningcook.com

Lavender Hidcote is one of our very best-selling sun perennials! It makes the  perfect low-growing hedge !   This drought-tolerant & hardy perennial has extremely  fragrant foliage & flowers  that are enjoyable in the garden, or cut-fresh & added to flowe

Lavender Hidcote is one of our very best-selling sun perennials! It makes the perfect low-growing hedge ! This drought-tolerant & hardy perennial has extremely fragrant foliage & flowers that are enjoyable in the garden, or cut-fresh & added to flowe

Geranium 'Appleblossom Rosebud' - Perennial & Biennial Plants - Thompson & Morgan

Geranium 'Appleblossom Rosebud' - Perennial & Biennial Plants - Thompson & Morgan

Astrantia 'Roma' - long flowering, hardy perennial with deep pink pin cushion flowers.

Astrantia 'Roma' - long flowering, hardy perennial with deep pink pin cushion flowers.

Carex comans 'Bronze Perfection' (Large Plant) - Foliage Plants - Van Meuwen

Carex comans 'Bronze Perfection' (Large Plant) - Foliage Plants - Van Meuwen

These hardy perennials can take almost anything you throw at them, (maybe not bullets). #sponsored

Bulletproof Perennials for a Sunny Garden

These hardy perennials can take almost anything you throw at them, (maybe not bullets). #sponsored

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