It is a hardy plant type and is capable of handling temperatures down to 0° degrees Fahrenheit (-18° C). What are these bugs? Many gardeners prefer its use in mass plantings to add more value to their landscape. There are no reviews yet. Your email address will not be published. The tiny, blue-white flowers are in oat-like clusters held on one side of the flower stalk. This native American grass was once was the dominant grass across prairies and open woods throughout most of North America. Since the plant has longer leaves, they flop ever and move elegantly with the wind and provide visual interest to rock gardens. Tan-colored flower spikes grow a foot above the foliage in summer. It is evergreen in locations with mild winters. It will be semi-evergreen in winter and can act as winter interest. The Morton Arboretum is a 501(c)(3) nonprofit that relies on the generosity of members and donors. Our future. 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. Full … Name: Helictotrichon sempervirens. Topped by ethereal, wheat-colored flower stalks in summer that sway in the breeze, this ornamental grass adds colorful relief to landscapes. Average Size at Maturity: Moderate growing; reaches 2 to 3 ft. tall and wide. The mound of blue leaves consists of spikelets of bluish-brown flowers perfect for adding elegance to the landscape. From top level menus, use escape to exit the menu. Within a submenu, use escape to move to top level menu parent. Size and Form Blue oat grass grows as an upright tuft or mound, reaching a height 2 to 3 feet when in flower. Blue Oat Grass (Helictotrichon sempervirens) Another plant with a silvery-blue hue is the Blue Oat … Explore this online platform for Chicago-area residents to share their favorite stories about trees. 24-36” tall x 18-24” wide. Use left and right arrow keys to navigate between menus and submenus. 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. Exposure: Full sun to partial shade. Its long leaves typically grow up till 2′ to 3′ feet. 1 Gallon, 2 Gallon, 3 Gallon, 5 Gallon. Blue oat grass is a cool season clumping grass with blue foliage, attractive flowers and a mounded form. Going insane here! They are tan when mature. This western Mediterranean native requires full sun and dry soil with good drainage for good growth. Blue Oat Grass: USDA Zone: 3-9: Plant number: 8.200.100. In the following year, the plant should experience robust growth in the growing season. Helictotrichon sempervirens, or Blue Oat Grass, forms clusters of graceful, pale-blue blades that grow 2-3’ tall and wide. Helictotrichon sempervirens is a cool-season, showy ornamental grass and grows in the full sun. Plant 24” apart The bright blue color of this deer resistant grass makes it a perfect addition to rock gardens. The fall color gives a spectacular and eye-catching look to the plant. Its identifiable feature is the blue foliage that measures 0.6 cm in width and 50-60 cm in length. Blue Oat Grass, botanical name Helictotrichon sempervirens, is suited to USDA zones 4-9, with full sun. Best blue color occurs when in dry soils. They provide the foundation for the ornamental 4' tall flower spikes that shoot up and ripen to a soft brown by midsummer. The small fruit (caryopsis or grains) form in the oat-like clusters that held the flowers. Cut back in April to encourage vigorous new growth. Growing just one foot high and as wide, blue fescue loves sun or part shade, and is evergreen in most areas, making it … The plant spreads slowly and is not considered invasive. Go to list of cultivars. The growth rate of the plant will definitely increase if you pay attention to its water needs, soil type, and light requirements. Probably the best blue-leaved grass for average garden conditions. It's hardy to -25 degrees F. The metallic blue leaves are 1/4 to 1/8 inch wide and 12-18 inches long. Most gardeners prefer mass plantings of the blue oat grass to increase the overall look of their gardens. Blue oat grass in 5b is a beautiful grass, but be warned it is HIGHLY invasive in good growing conditions.Would recommend planting in a large pot to control it's growth. Blue Oat grass is finely textured and its blue foliage grows around 18" tall but in a mounded shape. Flowering time is late spring into early summer. Steel blue leaves. Very nice habit. Special features: Dramatic Foliage Color , Easy Care , Improved Pest and Disease Resistance , Waterwise Foliage color: Blue-green The plant type is widely cultivated as a perennial ornamental ground cover grass. Graceful fountains of colorful bright blue-gray blades form neat ornamental clumps that combine well with other grasses. In late winter, cut back the old foliage of the clump-forming grass to 3″-4″ before new growth begins to emerge. This plant is great in mass plantings along borders. In most cases, the plant type will also resemble a porcupine-like clump. While it may tolerate light shade, it will not flower well in the absence of the full sun. 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. Buy It: Blue Oat Grass, ($12, Direct Gardening) Browse the curated collection and add your voice! This plant has some cultivated varieties. Flowers are borne from the tips of the tapered leaves tipped with golden oat-like seed heads. 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. Blue oat grass is a low-maintenance grass but would require routine trimming. Best in full sun and a moist, well-drained soil. In appearance, it is similar to blue fescue (Festuca Glauca) but it is slightly bigger in size. Use enter to activate. Beige to light brown terminal panicles appear June through August. Have tree and plant questions? Use left and right arrow keys to navigate between menus and submenus. Water newly planted clumps of blue oat grass every week or so for the first growing season to encourage a … It is typically grown in USDA plant hardiness zones 4 to 8. The blue oat grass grows well in well-drained soil. Throughout the fall, the blue oat grass maintains vibrant light brown flower color. Gardeners love the plants as it is also the recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society. The flowers are around 4″ to 6″ inches tall and have delicate, pointed petals with thistle-like and spiky centers. It is non-spreading and will grow 2 - 3' tall and just as wide. Special Plant Features & Tips. Required fields are marked *. It is also known by its German name ‘Saphirsprudel’. Flower Head Size Medium Height 60-90 cm 23-35 inches Spread 60-75 cm 23-29 inches Foot Traffic None Growth Rate Medium . An arching bamboo like look, has nice yellow foliage and grows best with filtered sun. Japanese Blood Grass. Grows up to 30 inches tall. Your email address will not be published. Zones: 4-8. Plants form a well-behaved clump of bright silvery-blue leaves, with taller arching stems of flowers appearing in early summer. Saphirsprudel (Saphire Fountain) (Helictotrichon sempervirens 'Saphirsprudel'): This cultivar is more tolerant of heat and resistant to rust. They remain blue all year. Get expert help from The Morton Arboretum Plant Clinic. Blue Oat Grass, Helictotrichon sempervirens, supplies the landscape with spiky tufts of unmistakable blue ornamental grass. Its petite size and vibrant color makes it an excellent little accent plant in rock gardens and small beds. Evergreen. As such, the plant doesn’t require regular fertilization. It is also a less invasive option for the landscape as it doesn’t spread via stolons or rhizomes, like other perennial grass. It reaches a height and spread of 2 ft. to 3 ft. Its petite size and vibrant color makes it an excellent little accent plant in rock gardens and small beds. Adds texture and color for the entire growing season, can be planted in mass to naturalize or alone as an accent. It is non-spreading and will grow 2 - 3' tall and just as wide. Tiny, blue-white flowers first begin to appear on seed heads of one-sided panicles in an oat-like cluster. Provides a beautiful backdrop during the winter months. Building the urban forest for 2050. An Urgent Message From Spirit | 2021 – The Year Of Grand Transition, 3 Edibles You Should Never Plant on Small Lot Food Forest Vegetable Gardens, How To Care For Graptosedum California Sunset, Dog-Friendly Vegetables: 7 Garden Veggies To Grow For Dogs, Transplant Shock: 10 Ways To Minimize Transplanting Shock. The following menu has 3 levels. Blue Oat Grass, Helictotrichon sempervirens, supplies the landscape with spiky tufts of unmistakable blue ornamental grass. These flowers with bluish tint turn harvest gold in late summer to autumn. Beige panicles are produced June through August, eventually achieving a light brown hue by fall. Reviews. The flowers are around 4″ to 6″ inches tall and have delicate, pointed petals with thistle-like and spiky centers. You can search, browse, and learn more about the plants in our living collections by visiting our BRAHMS website. This is an eye-catching ornamental grass that remains vibrant all summer long. https://plantcaretoday.com/waxflower-chamaelaucium.html, https://plantcaretoday.com/herniaria-glabra.html. Growing Conditions: Full sun and well-drained soil. Imperata cylindrica 'Rubra' or Japanese blood grass is a colorful red, yellow, … Try it with Heuchera ‘Palace Purple’ and Siberian Iris for a pleasing variety of forms and colors. use escape to move to top level menu parent. Special Features & Videos on Blue Oat Grass. Extremely versatile, it can be used for edging, rock gardens, containers, or in grouped at the front of the border. Blue fescue is kind of a miniature version of Blue oat grass. Save my name, email, and website in this browser for the next time I comment. The stiff gray-blue leaves are very striking. Size. Helictotrichon sempervirens generally is known by the common name – Blue oat grass. A popular cultivar is ‘Sapphire’ with deep blue foliage. Tiny, blue-white flowers first begin to appear on seed heads of one-sided panicles in an oat-like cluster. It is an easy-care plant and makes the perfect fit as a container plant. Your email address will not be published. Wet, clay soils may lead to root rot. If you are confused whether Blue Oat Grass or Blue Fescue are same, here are some features about those plants to help you choose better. Since this grass remains semi-evergreen through winter, it should not be cut back until early spring, before new growth begins. Height/Spread: Mounding arching habit, 2 to 4 feet tall and 2 to 3 feet wide. Stiff, blue-gray foliage with a nice clumping habit is 24” tall and can be evergreen in our area. Popular in public landscapes and home gardens, this commonly used ornamental grass is grown … Required fields are marked *. This cool season grass is propagated by seed in spring and by division in early spring or autumn. The separated plants are treated as a new perennial grass plant and planted at a new location. HAKONECHLOA macra 'All Gold' Medium Height. Colorado, Idaho, Oregon, Utah. In poorly drained and moist soils, the plant is susceptible to crown rot. 'Blue Oat Grass' Medium Height. Blue oat grass is spiky, spunky and blue — characteristics that invite comparisons to blue fescue. 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. We do not seem to have this in our living collection. This grass does not tolerate hot, humid summers and flowering may be reduced under those conditions. Blue oat grass maintains its attractive light brown fall color through the winter. The Blues is truly a classic in the landscape. Evergreen in warmer climates, this cool-season grass is semi-evergreen where winters are harsh. Resembling Blue Fescue (Festuca Glauca) but significantly bigger, it is the best of the mid-sized blue-leaved grasses. Size: To 4 feet tall. It grows as an accent plant, and looks great combined with blanket flower (Gaillardia), Russian sage (Perovskia), or Sedum ‘Autumn Joy’. And how do I get rid of them? Mature size: 2-3' tall and 2-2.5' spread . Your rating *. Zones: 4-9. It suits nearly any garden style, from cottage gardens to Zen and modern or contemporary. It tolerates everything from heavy clay to rocky, thin and poor soil. Learn more about Landscaping with Ornamental Grasses. 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. Blue Avena Grass is a good choice for mountain homes up to 8,500 ft. and is also a great Xeriscape plant. The foliage is a light, silvery blue-green color, with tan colored panicles and blooms. Helictotrichon sempervirens (Blue Oat Grass) - A cool season evergreen clump-forming grass that grows to 2 feet tall by up to 3 feet wide with blue-gray leaves radiating out like a bristly porcupine. Distinguishing traits. Reliable and attractive accent, specimen, perfect for rock gardens. The water needs of this low-maintenance plant range between dry and medium. Blue oat grass grows as an upright tuft or mound, reaching a height 2 to 3 feet when in flower. Spectacular blue-gray mounded foliage makes Blue Oat Grass standout from everything else in your perennial garden. This is a cool season grass, so its most active growth occurs in spring and fall. 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. Our trees. At that time, it can be cut down to the ground if needed or simply trimmed to remove winter damage. 48" tall x 24" wide (division propagated). When growing from seed, place the fully ripe seeds of the plant in moist sand in a pot and cover with foil. We did not plant it in a large pot, didn't think anything could grow like that in our weather and ended up pulling it out as it spread unchecked through the garden. It also has a tidy mounded habit and won't spread and take over your garden. Hardy to … Be the first to review “Blue Oat Grass” Cancel reply. The bloom time of blue oat grass is somewhere between early summer and late spring. Well-behaved and highly charming, Blue Oat grass (Helictotrichon sempervirens) is a showy ornamental grass that grows in attractive, round clumps of gracefully arching narrow steel blue leaves. 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. Difference Between Blue Oat Grass and Blue Fescue. Blue oat grass, Helictotrichon sempervirens [hel-lik-toh-TRY-kon, sem-per-VY-renz] is a semi-evergreen, cool-season, hardy, and showy ornamental grass and has distinctive blue leaves which enhances the look of your garden. This plant is the frosting on the cake for any garden, pleasing us by adding texture and color over the entire growing season. It's tough to beat blue oat grass for a low-care plant with steel-blue color. , … Colorado, Idaho, Oregon, Utah year long in the year. Plant has longer leaves, with taller arching stems of flowers appearing in early spring, pull away old... 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