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Good air circulation is needed to minimize rust (a fungal disease). Use up and down arrow keys to explore within a submenu. Evergreen. They are tan when mature. Browse the curated collection and add your voice! We do not seem to have this in our living collection. This cool season grass is propagated by seed in spring and by division in early spring or autumn. This plant has some cultivated varieties. Get expert help from The Morton Arboretum Plant Clinic. From afar, its large clumps and projected flowers are commanding and regal, but up close they bend and sway in a soft way, with long blue-gray blades radiating out from the center. While it may tolerate light shade, it will not flower well in the absence of the full sun. Plant blue oat grass in full sun and well-drained, average-to-dry soil such as that found in rock gardens and curbside planting beds. Helictotrichon sempervirens generally is known by the common name – Blue oat grass. It is also known by its German name ‘Saphirsprudel’. They provide the foundation for the ornamental 4' tall flower spikes that shoot up and ripen to a soft brown by midsummer. The foliage is a light, silvery blue-green color, with tan colored panicles and blooms. Buy It: Blue Oat Grass, ($12, Direct Gardening) These flowers with bluish tint turn harvest gold in late summer to autumn. Name: Helictotrichon sempervirens. The plant also has multiple options of use: you may use it as a single accent plant; try it in a container, or grow it in masses. The Morton Arboretum is a 501(c)(3) nonprofit that relies on the generosity of members and donors. Popular in public landscapes and home gardens, this commonly used ornamental grass is grown … The growth rate of the plant will definitely increase if you pay attention to its water needs, soil type, and light requirements. It also has a tidy mounded habit and won't spread and take over your garden. Use up and down arrow keys to explore within a submenu. The Blues is truly a classic in the landscape. The water needs of this low-maintenance plant range between dry and medium. Average landscape size: Moderate growing; reaches 2 to 3 ft. tall and wide. Even though the plant is well adapted to plenty of soil types, for the perfect steel blue color, grow it in well-drained, unenriched alkaline soil in a sunny place. Building the urban forest for 2050. It's tough to beat blue oat grass for a low-care plant with steel-blue color. Beige to light brown terminal panicles appear June through August. Its long leaves typically grow up till 2′ to 3′ feet. Natural Areas Conservation Training Program, Black walnut toxicity (plants tolerant of), Preventing construction damage to trees and shrubs, Trees and shrubs for the four seasons landscape, Sudden Oak Death, Ramorum Blight and Phytophthora ramorum, Eastern United States Wetlands Collection. Size. Save my name, email, and website in this browser for the next time I comment. Print this Plant. Cut back in April to encourage vigorous new growth. Explore this online platform for Chicago-area residents to share their favorite stories about trees. Size: To 4 feet tall. Your rating *. BLUE OAT GRASS Helictotrichon sempervirens. A popular cultivar is ‘Sapphire’ with deep blue foliage. While the blue oat grass is not susceptible to pest attack, it can get rust, especially in humid climates. The fall color gives a spectacular and eye-catching look to the plant. Saphirsprudel (Saphire Fountain) (Helictotrichon sempervirens 'Saphirsprudel'): This cultivar is more tolerant of heat and resistant to rust. use escape to move to top level menu parent. It is also a less invasive option for the landscape as it doesn’t spread via stolons or rhizomes, like other perennial grass. Hardy to … Our trees. An arching bamboo like look, has nice yellow foliage and grows best with filtered sun. Steel blue leaves. Your email address will not be published. Required fields are marked *. Within a submenu, use escape to move to top level menu parent. Blue oat grass is a low-maintenance grass but would require routine trimming. The small fruit (caryopsis or grains) form in the oat-like clusters that held the flowers. Since the plant has longer leaves, they flop ever and move elegantly with the wind and provide visual interest to rock gardens. 24-36” tall x 18-24” wide. Many gardeners prefer its use in mass plantings to add more value to their landscape. In most cases, the plant type will also resemble a porcupine-like clump. Resembles a very tall Festuca. Average Size at Maturity: Moderate growing; reaches 2 to 3 ft. tall and wide. Blue oat grass is spiky, spunky and blue — characteristics that invite comparisons to blue fescue. ‘Sapphire’ Blue Oat Grass is a standout cool-season ornamental grass. It is a hardy plant type and is capable of handling temperatures down to 0° degrees Fahrenheit (-18° C). At that time, it can be cut down to the ground if needed or simply trimmed to remove winter damage. It suits nearly any garden style, from cottage gardens to Zen and modern or contemporary. A clumping grass. Size and Form Blue oat grass grows as an upright tuft or mound, reaching a height 2 to 3 feet when in flower. Very nice habit. Blue Oat Grass (Helictotrichon sempervirens) grows in neat, densely rounded clumps of metallic, silvery blue foliage.This reliable, attractive grass is often used in garden design and landscaping. Topped by ethereal, wheat-colored flower stalks in summer that sway in the breeze, this ornamental grass adds colorful relief to landscapes. This grass does not tolerate hot, humid summers and flowering may be reduced under those conditions. Blue Oat grass is finely textured and its blue foliage grows around 18" tall but in a mounded shape. Plants form a well-behaved clump of bright silvery-blue leaves, with taller arching stems of flowers appearing in early summer. 'Blue Oat Grass' Medium Height. Throughout the fall, the blue oat grass maintains vibrant light brown flower color. Adds texture and color for the entire growing season, can be planted in mass to naturalize or alone as an accent. Helictotrichon sempervirens, or Blue Oat Grass, forms clusters of graceful, pale-blue blades that grow 2-3’ tall and wide. Probably the best blue-leaved grass for average garden conditions. https://plantcaretoday.com/waxflower-chamaelaucium.html, https://plantcaretoday.com/herniaria-glabra.html. Our future. It is non-spreading and will grow 2 - 3' tall and just as wide. Colorado, Idaho, Oregon, Utah. It's hardy to -25 degrees F. Flower Head Size Medium Height 60-90 cm 23-35 inches Spread 60-75 cm 23-29 inches Foot Traffic None Growth Rate Medium . Exposure: Full sun to partial shade. This is a cool season grass, so its most active growth occurs in spring and fall. Full … Wet, clay soils may lead to root rot. Mature size: 2-3' tall and 2-2.5' spread . Belonging to the grass family Poaceae, the scientific name of blue oat grass is Helictotrichon sempervirens. Your email address will not be published. Blue oat grass is a cool season clumping grass with blue foliage, attractive flowers and a mounded form. Belonging to the Poaceae family, Helictotrichon sempervirens is native to southwest and central European grasslands. The stiff gray-blue leaves are very striking. It will be semi-evergreen in winter and can act as winter interest. Our communities. Blue Oat Grass, Helictotrichon sempervirens, supplies the landscape with spiky tufts of unmistakable blue ornamental grass. 48" tall x 24" wide (division propagated). Be the first to review “Blue Oat Grass” Cancel reply. Blue oat grass maintains its attractive light brown fall color through the winter. 1 Gallon, 2 Gallon, 3 Gallon, 5 Gallon. Most gardeners prefer mass plantings of the blue oat grass to increase the overall look of their gardens. Required fields are marked *. Flowering time is late spring into early summer. In spring, pull away the old dead leaves to maintain a fresh look of the grass. It is an easy-care plant and makes the perfect fit as a container plant. Water newly planted clumps of blue oat grass every week or so for the first growing season to encourage a … Provides a beautiful backdrop during the winter months. Special Features & Videos on Blue Oat Grass. Zones: 4-9. They remain blue all year. Have tree and plant questions? In poorly drained and moist soils, the plant is susceptible to crown rot. This plant is the frosting on the cake for any garden, pleasing us by adding texture and color over the entire growing season. Graceful fountains of colorful bright blue-gray blades form neat ornamental clumps that combine well with other grasses. Grows up to 30 inches tall. Stiff, blue-gray foliage with a nice clumping habit is 24” tall and can be evergreen in our area. The tiny, blue-white flowers are in oat-like clusters held on one side of the flower stalk. Blue Oat Grass, botanical name Helictotrichon sempervirens, is suited to USDA zones 4-9, with full sun. Growing just one foot high and as wide, blue fescue loves sun or part shade, and is evergreen in most areas, making it … Stop by, email, or call. When propagating by division, use a sharp knife or a spade after digging up the mother plant. In the following year, the plant should experience robust growth in the growing season. Extremely versatile, it can be used for edging, rock gardens, containers, or in grouped at the front of the border. Going insane here! (Crown rot is a risk if this grass is grown in poorly drained soil.) Its petite size and vibrant color makes it an excellent little accent plant in rock gardens and small beds. The bright blue color of this deer resistant grass makes it a perfect addition to rock gardens. The mound of blue leaves consists of spikelets of bluish-brown flowers perfect for adding elegance to the landscape. This is a drought-tolerant plant and requires little care. Its identifiable feature is the blue foliage that measures 0.6 cm in width and 50-60 cm in length. The blue foliage color of this cool-season, clump-forming, perennial grass grows in a mound of spikey grass and resembles the shape of a water fountain. Throughout the fall, the blue oat grass maintains vibrant light brown flower color. And while other plants may lose their beauty when they flop over, the grass is liked for its clump-forming as it makes the garden appear more vibrant. It's a cool season ornamental grass that provides interest all year long in the landscape. Blue Avena Grass is a good choice for mountain homes up to 8,500 ft. and is also a great Xeriscape plant. Use left and right arrow keys to navigate between menus and submenus. Resembling Blue Fescue (Festuca Glauca) but significantly bigger, it is the best of the mid-sized blue-leaved grasses. Tan-colored flower spikes grow a foot above the foliage in summer. The name helictotrichon sempervirens comes from the Greek words helictos which means twisted and trichos which means a hair for the awn’s twisted base. In late winter, cut back the old foliage of the clump-forming grass to 3″-4″ before new growth begins to emerge. Go to list of cultivars. Growing and Care Of Pink Banana Musa Velutina, New Year’s Day History: Incorporating New Year’s Traditions Into The Garden, Root Rot: How To Care For Plants With Rotting Roots, Waxflower [Chamaelaucium Uncinatum] Growing And Care, 3G organic Pesticide for plants || Make a most powerful 3G organic pesticide for any plants. Distinguishing traits. 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