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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

~Meadow Sage~ This deer-resistant perennial is easy to care for and rewards the beginning gardener with long-blooming deep purple flowers. It’s a favorite of hummingbirds and bees, and will become a favorite of yours, as it comes back year after year.

20 Plants That Survive With or Without You

~Meadow Sage~ This deer-resistant perennial is easy to care for and rewards the beginning gardener with long-blooming deep purple flowers. It’s a favorite of hummingbirds and bees, and will become a favorite of yours, as it comes back year after year.

#Coneflower- tolerates full sun to light shade. bloom from early summer to fall. one of the most hardy perennials.

Power Perennials: Plants That Thrive No Matter What

#Coneflower- tolerates full sun to light shade. bloom from early summer to fall. one of the most hardy perennials.

7 Gorgeous Must Have Hardy Perennials for the Shade Garden

These Hardy Perennials are the Toughest on the Block

Tips for Growing Hosta | If a low maintenance garden is your goal, planting hosta is a must. Here are easy tips and advice for growing this hardy perennial. Also known as a plantain lily, hosta plants are perfect for shade and sun gardens alike. #Sponsored

Tips for Growing Hosta

Tips for Growing Hosta | If a low maintenance garden is your goal, planting hosta is a must. Here are easy tips and advice for growing this hardy perennial. Also known as a plantain lily, hosta plants are perfect for shade and sun gardens alike. #Sponsored

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

Clematis montana 'Mayleen' - Part of the Alan Titchmarsh Collection Nicknamed the 'mile a minute' clematis, height 33'(10m) and spread 10'(3m). Good scent of vanilla, rated as a 'beginner' hardy perennial. Pruning Group 1.

Clematis montana 'Mayleen' - Part of the Alan Titchmarsh Collection Nicknamed the 'mile a minute' clematis, height 33'(10m) and spread 10'(3m). Good scent of vanilla, rated as a 'beginner' hardy perennial. Pruning Group 1.

Festuca Boulder Blue - Discovered in Colorado, Boulder Blue has a much brighter steel-blue foliage color than the more commonly available Elijah Blue. This hardy, perennial grass forms tufts of metallic-blue fine foliage from early spring through late fall & even into winter.  Festuca Boulder Blue takes intense heat & drought without losing its blue color and makes the perfect addition to patio/deck container gardens.  Special Features: Cold Hardy, Disease Resistant, Easy Care, Fast Growing

Festuca Boulder Blue - Discovered in Colorado, Boulder Blue has a much brighter steel-blue foliage color than the more commonly available Elijah Blue. This hardy, perennial grass forms tufts of metallic-blue fine foliage from early spring through late fall & even into winter. Festuca Boulder Blue takes intense heat & drought without losing its blue color and makes the perfect addition to patio/deck container gardens. Special Features: Cold Hardy, Disease Resistant, Easy Care, Fast Growing

Lavender Hidcote is one of our very best-selling sun perennials where 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 flower arrangements! Lavender Hidcote can also be cut & dried for use in potpourri & other dried flower arrangements. This easy-to-grow sun perennial thrives in full sun & normal garden soil. Plants vigorously grow...

Lavender Hidcote is one of our very best-selling sun perennials where 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 flower arrangements! Lavender Hidcote can also be cut & dried for use in potpourri & other dried flower arrangements. This easy-to-grow sun perennial thrives in full sun & normal garden soil. Plants vigorously grow...

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

These Hardy Perennials are the Toughest on the Block