Heavy Metal Grass

Metallic Blue Foliage
Upright Native Texture
Winter Garden Interest

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#2 Container

$20.00

55 in stock

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Heavy Metal Grass

Sunlight
Can grow in a range from full sun to partial shade. They need at least six hours of direct, unfiltered sunlight per day.
Watering
Regular watering schedule for the first six months. Once established, rainwater should be sufficient.
Fertilizing
Should not need any extra fertilizer unless your entire lawn and garden have problems and needs regular fertilizing.

Heavy Metal Grass

Heavy Metal Grass is a strongly upright ornamental switchgrass known for metallic blue-green blades, airy summer plumes, and warm golden-tan fall and winter color. This native grass cultivar adds vertical structure, movement, and four-season texture to sunny borders, meadow-style plantings, rain gardens, and naturalized landscapes.

Why choose Heavy Metal Grass?

Choose Heavy Metal Grass for its stiff, columnar habit and distinctive blue-toned foliage that stands out among flowering perennials and softer grasses. Unlike looser ornamental grasses, this switchgrass keeps a narrow, architectural shape that works well as a vertical accent, repeated border rhythm, or mass planting. Summer flower panicles add airy movement, while seed heads and tan winter stems provide texture after frost. It is a great choice for sunny landscapes where gardeners want native character, seasonal color, and low-maintenance structure.

Key Characteristics

Botanical Name: Panicum virgatum ‘Heavy Metal’
Common Name: Heavy Metal Switchgrass, Heavy Metal Blue Switch Grass
Plant Type: Deciduous ornamental grass
Growth Habit: Upright, columnar, clump-forming

Heavy Metal Grass Additional Information

Heavy Metal Grass forms a narrow, upright clump of stiff metallic blue-green foliage that brings cool color and strong vertical lines to the garden. In midsummer, fine-textured flower panicles appear above the foliage with a soft pink cast, maturing into darker seed heads that add late-season interest. As temperatures cool, the foliage shifts toward amber, gold, and tan, then remains attractive through winter as a dried grass silhouette.

This warm-season switchgrass begins growth later in spring than many cool-season perennials, then fills in strongly during summer heat. It is deciduous, so old stems should be cut back before new growth emerges. Heavy Metal Grass is useful as a specimen, in groups, along mixed borders, in native gardens, near pond edges, and in rain garden designs where upright texture and adaptable soil performance are valuable.

Planting & Care

1. Planting: Plant Heavy Metal Grass in full sun for the strongest upright form and best foliage color. Set the crown level with the surrounding soil, backfill gently, and water thoroughly after planting.

2. Watering: Water regularly during the first growing season while roots establish. Once established, it adapts well to average garden moisture and can handle both short dry periods and moist soil conditions when drainage is reasonable.

3. Pruning: Leave the dried stems standing through winter for texture and movement, then cut the clump back close to the ground in late winter or early spring before fresh shoots appear.

4. Spacing: Space plants about 24 to 36 inches apart, depending on the desired effect. Use closer spacing for a denser mass planting or wider spacing to highlight each upright clump individually.

Related Resources

FAQs

How tall does Heavy Metal Grass get?
Heavy Metal Grass typically reaches about 4 to 5 feet tall when in bloom, with a narrow spread of roughly 1 to 2 feet depending on site conditions and maturity.
Does Heavy Metal Grass need full sun?
Yes. Full sun helps Heavy Metal Grass maintain its upright, columnar shape and encourages strong blue-green foliage color. Light shade is possible, but sunnier locations produce the best form.
When does Heavy Metal Grass bloom?
Heavy Metal Grass usually blooms in midsummer, producing airy, pink-tinged panicles above the foliage. The seed heads continue adding texture into fall and winter.

Shipping Details

Estimated Shipping Time: Most orders ship immediately. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you’ll receive an email with a tracking number.

Amount of Order	Shipping Charge
Local Delivery	FREE SHIPPING
Non-Local Delivery	Varies based on UPS shipping

Lush Foliage
Full Sun
Plant Spacing

Mature Height	10' +
Mature Spread	0-5 ft
Growth Rate	Fast, Moderate
Botanical Name	Panicum virgatum 'Heavy Metal'
Bloom Time	Late Summer, Mid Summer
Deer Resistant	Usually
Family	Poaceae
Flower Color	Pink
Hardiness Zones	5, 6, 7, 8, 9
Light Needs	Full Sun
Maintenance	Low
Size	#2 Container

Map of the United States with most states shaded green and boundary lines visible.

Growing Zones 4-9 Outdoors

(Hardy down to -30)

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