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Splendor of the Grasses

Ornamental Grasses as Cut Flowers

By John Friel

When you say “cut flowers,” most folks don’t picture grass plumes. But man does not live by red roses alone, and florists love happy surprises.

For growers, grasses are a great crop. Compared to traditional cuts, they’re tough and adaptable. Many grow in marginally fertile soils and thrive with minimal maintenance. There’s a wide range of heights, colors and textures, and a reasonable harvest season. Deer leave them alone.

Grass flowers can be fine and delicate, like Muhlenbergia, or huge and fluffy, like Cortaderia. And flowers aren’t the whole story: Long, graceful foliage makes a great filler or accent in arrangements.

Here are some grasses that work well as fresh cuts.

Miscanthus Maiden Grass (Zones 5-10) This premier landscape genus is also at home in the vase. Cut plumes young, or they’ll shatter indoors. Blades can be solid green, or variegated; narrow, or very wide; longitudinally striped, or cross-banded. Broad-bladed types include ‘Cabaret’ (white center, green edge) and ‘Cosmopolitan’ (green center, white edge). Their foliage is 1½” (3.54 cm) across.

Pennisetum alopecuroides: Fountain grass (Zones 6-9) ‘Red Head’ produces unusually large, smoky purple bottlebrush plumes. ‘Moudry’ flowers are nearly black. P. orientale ‘Karley Rose’ (Zones 5-9) has distinctive rose-pink flowers. P. macrostachyum ‘Burgundy Giant’ has wide burgundy leaves and very large foxtail flowers.

Big, annual Pennisetum varieties ‘Prince’, Noble and First KnightTM have wide, near-black blades. With these non-flowering hybrids, it’s all about the foliage.

Blades are typically sold to florists in bunches of 10 or more. Harvesting technique is simple: One grower says, “Whack with grass clippers and pick out the good stuff.”

P. villosum, Feathertop grass: (Zones 8-10) Puffy, ivory-white plumes sprawl charmingly in the border, but for cuts, support it with netting.

Schizachyrium scoparium, little bluestem and Andropogon gerardii, big bluestem (Zones 3-9)

Schizachyrium has numerous cultivars selected for ornamental traits, Andropogon only a few. It’s better known for naturalistic plantings and restoration. Intrinsic Perennial Farm has updated Andropogon with ‘Rain Dance’ and ‘Blackhawks’, selected for multi-colored foliage. Rich reds and purples deepen as summer wanes. Schizachyrium varieties ‘Standing Ovation’ and ‘The Blues’ have tremendous late-season stem color.

Briza media Quaking grass (Zones 4-10) The earliest grass to produce saleable flowers, Briza needs replanting every three years. Seed heads resemble Chasmanthium, but appear earlier, tinged red and purple.

Calamagrostis: Feather reed grass (Zones 4-10) is a cosmopolitan genus, found in Asia, Europe and the Americas. C. xacutiflora ‘Karl Foerster’ was the first grass named Perennial Plant of the Year. Hybrids ‘Avalanche’, ‘Eldorado’ and ‘Karl Foerster’ are usually sterile, and won’t self-sow. C. arundinacea var. brachytricha, whose pink-tinged plumes are the biggest in the genus, is severely under-appreciated.

Chasmanthium latifolium: Northern sea oats (Zones 5-9)

Chasmanthium tolerates wet winters and can be harvested at different stages. Some growers cut when the inflorescence is fully mature, just before it turns tan. Others prefer it still soft, silky and green.

Cortaderia selloana, Pampas grass (Zones 8-10) A beautiful, tender giant. Feather-duster plumes soar to 10’ (3m) and beyond. Cortaderia can be grown in very large containers and moved indoors, but that’s a lot of work. The foliage is dangerously sharp. Why mention something so unsuited to Canada? The flowers. They’re phenomenal.

Eragrostis spectabilis: Purple love grass (Zone 5-9) A North American native with fine clouds of reddish-purple panicles. An annual relative, E. tef, is an important African food crop and a trendy grain in America. ‘Ruby Silk’ is an ornamental form with nifty red flowers.

Helictotrichon sempervirens: Blue oat grass (Zones 4-9) A European native, spiky and glaucous blue, like a fescue’s big brother. Flower spikes rise to 3’ (90cm) over 2’ (60cm) foliage clumps.

Leymus arenarius ‘Blue Dune’: Blue Lyme grass, dune grass (Zones 4-9) Powder-blue sprawling foliage is 2’ (60cm) tall. Flower plumes stand 4’ (1.2M). It runs, but unwanted plants pull easily. Technically a cool-season grass, it handles roadside heat and salt. Blue/green seed heads are best tightly closed.

Muhlenbergia capillaris: Purple muhly grass (Zones 6-10) Named for Gotthilf Muhlenberg, minister, naturalist and botanist, this native produces prodigious clouds of dazzling pink/purple seedheads. It’s a little tender and late-flowering for northern growers, but a newer form, ‘Fast Forward’, blooms weeks earlier.

Panicum virgatum (Zones 4-10) A North American native with many cultivars. ‘Heavy Metal’ gets high marks for upright posture, steel-blue foliage and ease of production. ‘Hot Rod’ has rich maroon-red blades. Both tolerate clay soils, won’t blow down, and can be cut at several stages.

Most cut flower books barely mention grasses. But heck, anything you want is on the internet, right? Nope. It’s surprising how little is out there.

For unusual cuts, the online info mother lode is a bulletin board maintained by and for members of the Association of Specialty Cut Flower Growers. Ohio-based ASCFG is a tremendous resource, well worth the price of membership, especially if you’re new to cuts. Members are famously willing to share information on everything from sourcing seeds to building your own cooler. They’ve made the mistakes, and can save you from repeating them. More at

John Friel is marketing manager for Emerald Coast Growers, one of North America’s largest liner producers. For more information on perennials, specialty plants or ornamental grasses, call 1-877-804-7277, e-mail or visit


Grasses in pumpkin:

An impromptu fall arrangement features plumes and blades of Miscanthus, Pennisetum and Leymus.

Schizachyrium ‘The Blues’

Miscanthus ‘Cosmopolitan’ foliage is bright and very broad.

Miscanthus plumes must be harvested young and tight.

Leymus ‘Blue Dune’ runs and sprawls, but sports useful seed spikes.

Pennisetum villosum needs netting for cut production.

This article originally appeared in Greenhouse Canada magazine.