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These Hardy Perennials are the Toughest on the Block

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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

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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.

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Power Perennials: Plants That Thrive No Matter What

Summer flowers that just won't quit - there are plenty of perennials that bloom well into the fall like echinacea.

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

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Power Perennials: Plants That Thrive No Matter What

Artemisia has beautiful silver-gray foliage that won’t fade in the hot sun. This hardy perennial is also drought and insect resistant, and t...

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Lavender Hidcote – This easy-to-grow sun perennial thrives in full sun normal garden soil. Plants vigorously grow to form mounds of fragrant, silvery foliage 18 tall 24 wide. This drought-tolerant hardy perennial has extremely fragrant foliage.

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Dianthus 'Tropical Butterfly' Carnation Hardy Perennial Customer favourite Delight your senses with this scintillating dianthus. Its breathtaking beauty is matched only by the power of its fragrance. Exotic, bicolour blooms carried above mounds of silver-green foliage lend a tropical feel to perennial borders and containers, producing an abundance of perfumed dianthus flowers for cutting. Height: 40cm (16”). Spread: 30cm (12”).

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