Valued for its tiny white … Let’s talk about rock cotoneaster and how to maintain and care for it! Epic Gardening occasionally links to goods or services offered by vendors to help you find the best products to care for plants. Cotoneaster /kəˈtoʊniːˈæstər/ is a genus of flowering plants in the rose family, Rosaceae, native to the Palaearctic region (temperate Asia, Europe, north Africa), with a strong concentration of diversity in the genus in the mountains of southwestern China and the Himalayas. Prefers well-drained, loose, fertile soil with adequate moisture, but tolerates dry, poor soils, and wind. Informational table showing disease name, symptoms, pathogen/cause, and management of Cotoneaster diseases. These sprays develop a distinctive herringbone pattern which is quite appealing. It would hold just enough moisture to sustain the plant, but water wouldn’t pool around the roots. Cotoneaster is a deciduous, spreading shrub. A little more about me. It’s truly best as an in-ground planting option. Safer Brand Horticultural & Dormant Spray Oil, Dr. Earth Ready-To-Use Disease Control Fungicide, Pachysandra Procumbens: Allegheny Spurge Ground Cover, Ipomoea Tricolor: Growing Great Grannyvines, Well-draining, loamy, can tolerate poor soils, Cotoneaster webworm & lace bugs worst pests, fire blight possible. Common Name: Cotoneaster. Cotoneaster horizontalis is a woody, perennial, deciduous or semi-evergreen, procumbent shrub with horizontally spreading branches.It is native to parts of China, and has been introduced widely to Europe, North America, Australasia and other parts of the world as an attractive garden plant with bright red berries which often persist into winter. While you're here, why not follow us on Facebook and YouTube? Similar taxa. It is cultivated for its flat, symmetrical sprays of glossy green, deciduous leaves 6 to 12 mm long and masses of bright red berries in autumn, persisting into winter.The flowers appear in summer, and can range from pink to white. Most pruning should be to prevent overflowing boundaries. It grows with stiff and evenly-branched sprays of foliage. Patrick Breen, Fertilizing is best done when the plant is beginning to develop new leaves in spring. If the answer is “never”, it’s a good idea to fertilize with a balanced fertilizer. Use sterilized, sharp pruning shears. C. horizontalis resembles C. microphyllus in its sprawling growth and distichous branching system, deciduous habit, and more or less erect, pinkish flowers (Webb et al. prairie provinces C.apiculatus Rehd. Cotoneaster horizontalis Decne. A 10-10-10 is just fine if your plant’s already at your preferred size. ... Common Name(s): Bearberry Cotoneaster; Phonetic Spelling koh-toh-nee-ASS-ter dah-MER-ee Description. Incorrect use can cause serious harm to your plant. Best grown in moist, loamy, well-drained soils in full sun to part shade. However, none of these formulations are available on the mass market. We’ll go over those specific problems now, and how to handle them should they arise! Common name(s): Fishbone Cotoneaster, Prostrate Cotoneaster: Map showing the present distribution of this weed. Kingdom. It tolerates full sun to partial shade, but doesn’t flower well in full shade conditions. The worse the damage, the harder the plant finds it to properly make chlorophyll. Low-maintenance, it’s definitely worth growing for its seasonal color! but the leaves of C. horizontalis are more orbicular and flat with rounded (not apiculate) tips and the branching is less strongly distichous (more ‘herring-bone’ pattern in C. perpusillus). There are some products made with essential plant oils and malic acid which may help. Hi, I'm Kevin. Hardy to USDA Zone 5 Native to Western China. Species: horizontalis. These are rarely clustered, instead appearing in ones or twos evenly across branches. Remove lower leaves, and dip in water and a powdered rooting hormone. Common species. These appear as sunken areas on the stems or branches. I recommend providing a location which has morning sun and afternoon shade. It’s an effective erosion controller, too. Propagation is best done from softwood cuttings in the early summer. This ensures that every cut is sterile and you aren’t spreading disease. The name, Rockspray Cotoneaster, is also applied to, Corvallis: west of the stairs to the north (back) entrance of the Corvallis Library. Cotoneaster horizontalis. Small, rounded dark green leaves give an almost lacy look to its branches. Removal of dead or diseased wood is also an option. wilsonii Havemeyer ex E.H. Wilson. The tiny, rounded leaves are quite pretty. It will tolerate a wide range of conditions from lightly acidic to lightly alkaline. Thankfully, lace bugs are easy to treat. They tend to be limited in scope and easy to fix! Cotoneaster horizontalis. Here is more about our approach. This ensures that your plant has a little cooler conditions during the peak heat of the day. Click on a scientific name below to expand it in the PLANTS Classification Report. It has small, oval dark green, slightly hairy leaves that turn bronzy purple in autumn. It needs a slightly higher nitrogen content for its greenery and for spreading. Cotoneaster species can be poisonous to humans and pets, both the foliage and the berries. But if you’ve got a hillside that needs erosion control, or border space that needs something, this is absolutely perfect. The California Poison Control Center considers them to be level 4 toxic plants. It is somewhat resistant to sodium-based ice melt products and road deicers, too. Genus Common Names = Cotoneaster Number of Taxa in the Cotoneaster Genus = between 72 and 347 depending on classification method List of Cotoneaster Shrubs, Cotoneaster Genus - Some of the most commonly known species, taxa, organized by scientific Latin botanical name first and common names … Spider mites may come to call, especially during drier times. The spores of the disease can linger on leaf debris. Genus: Cotoneaster. Deciduous shrub, 2-5 ft (0.6-1.5 m) tall by 10 ft (3 m) or more wide, layered (like a spray of water), low spreading; fish-bone branching habit. Humidity-wise, this plant is fine as long as there’s consistent airflow. Some forms of aphid, particularly the apple aphid, may attack your plant. While there are some pests and diseases that will impact them, they’re limited in scope. Glossy and green through most of the year, they turn vibrant shades of red and orange in fall. But it does make it a bit difficult to remove fallen leaves under the branches in the late fall. This is a tough and adaptable plant ... Noteworthy Characteristics. Maintaining consistent, but not heavy soil moisture is best for these plants. In its southern reaches, it is semi-evergreen to evergreen. These typically attach to the branches of your plant itself. If you aim for a neutral range, it’s easiest to maintain. Regularly spraying down the foliage of your cotoneaster plants will reduce their numbers. This article contains incorrect information, This article is missing information that I need. It makes a beautiful hillside landscaping shrub or pathway border. Plantae – Plants. Garden Uses. Be sure to cover some young leaf buds with hormone, as the roots will develop from the lower buds. Habitat: Cotoneaster horizontalis has been reported to have invaded pasture in New Zealand (Webb et al 1988). Still it is beneficial to know the common name of all garden plants. cotoneaster horizontalis Family: Rosaceae | Common name: Rockspray cotoneaster This shrub is almost flawless with something to offer in every season. Different pH levels rarely have an effect on this plant. Certain horticultural copper fungicides may be used in rare occasions. Cotoneaster horizontalis is especially vulnerable to the Cotoneaster fire blight. A: In very limited conditions, yes… but those are pretty rare. The upper part of zone 7 might be able to maintain year-round foliage in sheltered conditions. Denuded branches maintain their stiff fan-shape. One of the beauties of the cotoneaster plant is that it seldom, if ever, requires pruning. It is invaluable in shade, although its crops of neat pink flowers and bright red berries are more prolific in full sun. Only spray where necessary to kill off this webworm. Unfortunately, there are a couple other problems which could arise with these plants. Denuded branches maintain their stiff fan-shape. Common name of Cotoneaster is the name which changes with change in the regions. Skill Level: Beginner. It isn’t anywhere near as low-lying as most of the popular ground cover plants. The tumbling display of this plant works well in cascading rock gardens, in long beds, and on hills. Description. Are you looking for something just a bit different by way of ground cover? Cotoneaster hessei, sometimes commonly called Hesse cotoneaster, is a low-growing, deciduous, shrubby ground cover that rises to 18” tall but spreads over time to as much as 5’ wide. Once established, rock cotoneaster can handle drought like a champ in partial shade. But if possible, new plantings should be in soil which has a lot of decomposed plant matter to start with. Leaves small, about 10 mm long, lustrous dark green, may become dark red in fall. This plant can struggle in hotter climates, and isn’t the best choice for zones 8 and above. If a disease has affected your plant, remove at least 8-12″ past the blighted part of the stem to be sure you get it all. Explore Cotoneaster Information in detail along with its common name and scientific name. Use a horticultural dormant oil or neem oil in the fall and winter to prevent them from attaching. Cotoneaster horizontalis - Plant Finder. A sticky ooze can develop on the twigs and limbs. Most cotoneaster issues develop from pests or diseases. see more; Synonyms Cotoneaster acuminata var. Sun to part shade. Evergreen shrub, 6-12 ft (1.8-3.7 m), spreading, dense, arching, reddish stems. In the spring months, pink-tinged flowers appear. Coastal climates and mild regions provide a perfect home. We're always looking to improve our articles to help you become an even better gardener. But if you’ve got a large area to fill, rock cotoneaster may be a good choice. In a perfect world, your cotoneaster plants would have loamy, well-draining soil. Home » Cotoneaster Horizontalis: Beautiful Berries & Foliage. Cotoneaster horizontalis Scientific name; Prostrate Cotoneaster Common name; Not Sensitive; Exotic; Minor Weed or Pest; 677m to 714m Recorded at altitude; Location information. I prefer slow-release granular fertilizers for this plant, but you can use liquid options as well. With sterile tools, and sterilizing between cuts, removing infected branches is essential. Genus Cotoneaster can be deciduous or evergreen shrubs or small trees, with simple, entire leaves and clusters of small white or pink flowers in spring and summer, followed by showy red, purple or black berries . Liquid formulations can be applied once per season, but diluted to lower levels to avoid over-fertilization. Over time, they can actually improve their own soil a bit just by dropping leaves. Active cankers will have an amber or brown ooze in or around the canker. to Nebraska & upper mid-West,S Canadian C.pekinensis Zab. Some of these may be affiliate links, meaning we earn a small commission if items are purchased. But because of its nature, it looks best when left alone! Peking cotoneaster North China;introduced from North Dakota C.acutifoliaTurcz. Try to minimize the deicer’s spread to the soil as much as possible. Poor soil is tolerated by these plants, but only if it drains off excess moisture. Lace bugs are another form of pest common in the western US. Botanical Name: Cotoneaster horizontalis: Common Names: Rock cotoneaster, rockspray cotoneaster, wall cotoneaster: Plant Type: Deciduous shrub: Mature Size: 2 to3 feet tall; 6- to 8-foot spread feet: Sun Exposure: Full sun: Soil Type: Well-drained; young plants need evenly moist soil: Soil pH: 6.75 to 7.5 (neutral to slightly alkaline) Bloom Time: Late spring: Flower Color Cotoneaster horizontalis Decne. Verbena canadensis. pH adaptable. It’s easier to remove the damaged portions or to get professional help. Use a ground staple to secure a low-hanging branch to the soil at its midpoint. The tiny, rounded leaves are quite pretty. This bacterial spray will eliminate most forms of caterpillar. Problems. Common Name(s): Rockspray; Rockspray Cotoneaster; Phonetic Spelling koh-toh-nee-ASS-ter hor-ih-ZON-tal-iss Description. Deciduous shrub, 2-5 ft (0.6-1.5 m) tall by 10 ft (3 m) or more wide, layered (like a spray of water), low spreading; fish-bone branching habit. It can be grown as a container plant as well, although it prefers long planters to narrow pots. They are related to hawthorns (Crataegus), firethorns (Pyracantha), photinias (Photinia) and rowans (Sorbus). Creeping cotoneaster is a dense, low-growing, spreading shrub used as a ground cover, in rock gardens, or cascading over stone walls. Treatment of this caterpillar should be done with a bacillus thurigiensis spray. CPN (Certified Plant Nerd)Patrick.Breen@oregonstate.edu, College of Agricultural Sciences - Department of Horticulture, USDA Hardiness Zone Maps of the United States, Oregon Master Gardener Training: Identifying Woody Plants. Removal of diseased branches is better, but be sure to also remove any fallen leaves. The foliage is somewhat rigid, and thus may not look ideal in all container types. Welcome to our types of shrubs database where we list many varieties of shrubs. Consider soaker or drip irrigation underneath the foliage for ease of watering. While they do limited damage, they can spread disease easily. In time, the underside of the spot will develop spores and the disease will spread. They’re not generally susceptible to many of the moisture-related diseases. Prostrate cotoneaster (Cotoneaster horizontalis) is regarded as an environmental weed in Victoria, and as a potential environmental weed in New South Wales, Tasmania and the ACT. It grows with stiff and evenly-branched sprays of foliage. Full-sun plantings need a bit more moisture, as do younger plantings while they grow. Be sure that some leaf bud points are just under the soil’s surface. Brilliant red berries decorate this deciduous shrub once it has stopped flowering. Underwatering, while less of a problem, can lead to leaf-drop or plant weakness. With this leaf spot, copper fungicides are again risky. Fresh shoots can develop a crooked shape, like a shepherd’s crook. A 10-8-8 slow release is fine for spurring new growth. Although the Royal Horticultural Society lists this plant as a species, it is unclear as to whether the origin of the plant has been conclusively determined. The stiff, semi-hardwood branches fan out overtop each other. Rockspray cotoneaster is a coarse, dense, slow-growing, shrub that reaches 2-3 feet tall and 6-8 feet wide. It’s not as low-growing as most ground covers. It feeds on plant leaves and can cause major defoliation of branches. It is completely deciduous in colder climates but only partially in more temperate ones. So prevalent that it’s named after the plant it feeds on, the cotoneaster webworm is a caterpillar. With slow-release fertilizers, apply once in early spring. The plant loses all greenery for the winter. And in the fall, the leaves turn brilliant shades of orange and red, just in time for your Halloween display. It’s especially popular now in coastal gardens due to their milder temperatures. Sun to part shade. This means that some California coastal areas might work. Coastal conditions often provide enough air moisture that watering frequency is greatly reduced. If you can provide a small amount of water on a consistent basis, it’s better in the long-term for these plants. In the spring months, pink-tinge… If your plant’s leaves begin to yellow and it’s spring or summer, consider when you last fertilized. Exposure: Full sun, Partial shade. Each listing includes an image and key growing information below in a … Maybe something taller than wooly thyme or mazus reptans, but with a similar pop of color? Cotoneaster horizontalis var. Select a healthy stem with plenty of young leaves, preferably one that’s vigorous. Subkingdom. These begin as yellowish fruit, but will turn a brilliant scarlet color. A neem-based spray can keep them at bay. Isaacs Ridge Isaacs Ridge and Nearby Entomosporium leaf spot is another common rosaceae family problem. As the flowers fade, the fruit begins to appear, and a myriad of small berries form. Armored scale insects may develop from the late winter into the early spring. Those locations would need to be frost-free zones. Sometimes, this may mean cutting back to the main trunk of the plant. Blossom blight can cause the flowers to go necrotic. Consistent soil moisture is better than wildly-fluctuating conditions. Good drainage is important. Watering too much or too little is the other big problem. Oregon State Univ. As a general rule, very little will be a problem for your cotoneasters. This technique does not always work, so cuttings are more effective for propagation. Glossy and green through most of the year, they turn vibrant shades of red and orange in fall. This one isn’t a good choice for a lawn replacement, as an example. Family Rosaceae . But don’t go too heavy on it! Small pink flowers (5 mm diam. Insecticidal soaps and neem oil both work well to eliminate these pests. Latin Name Common Name Habit Height Hardiness Growth Soil Shade Moisture Edible Medicinal Other; Cotoneaster acuminatus: Acuminate cotoneaster: Shrub: 4.0: 4-8 LMH: SN: DM: 0: 0 : Cotoneaster bacillaris : Shrub: 5.0: 5-9 F: LMH: SN: DM: 0: 1 : Cotoneaster conspicuus Adding lacewings to your garden provides a natural predator for the lace bug. This leaves a stippled, dotted surface and damages the leaves themselves. Sometimes, a version of air layering can be used to encourage further spread. These sprays develop a distinctive herringbone pattern which is quite appealing. Like most plants that do well in coastal climates, this one tolerates slightly higher salt content. Over or under fertilizing can create chlorosis, or yellowed leaves. Erwinia amylovora can be a little hard to combat. I created Epic Gardening to help teach 10,000,000 people how to grow anything, no matter where they live in the world. Table 1—Cotoneaster,cotoneaster: nomenclature and occurrence Scientific name & synonym(s) Common name(s) Occurrence C.acutifoliusTurcz. The branches root along the ground as they grow. If your goal is to maintain size and promote flowering/fruiting, opt for balance instead. Cotoneaster. As I said above, zones 5-7 are ideal in the US. In early spring as it forms leaves, your plant will need a bit more nitrogen than the rest of the year. prostrata. 1988). Culture. Good Products For Cotoneaster Horizontalis: Cotoneaster is a deciduous, spreading shrub. Between cuts, set your shears in a mixture of 1 part bleach to 9 parts water for at least 10 seconds. Native to (or naturalized in) Oregon: No. Common Name of Cotoneaster. This fungal-based leaf spot disease causes reddish spotting on the leaves. Cotoneaster insignis . This species appears to have the potential to become an invasive weed in sub-alpine and alpine vegetation, particularly on rocky slopes, in south-eastern Australia. Fruit small (5 mm), bright red, in late summer and fall. Not to be confused with the beneficial lacewings, lace bug nymphs will suck moisture from the leaves. Cotoneaster horizontalis is a hardy, low growing almost prostrate shrub with sprays of branches that appear to be tiered. Below you can scroll through 99 different types of shrubs. Tracheobionta – Vascular plants. This same blight can cause cankers on the stems. Scientific Name and Common Name. Cotoneaster horizontalis is an excellent choice! Keep children and small animals away, and resist the temptation to sample the berries! Cotoneaster horizontalis has excellent late colour, but is also popular for the characteristic herringbone pattern of its stems, which develop into a decorative basketwork across the ground or on a wall, according to how it is trained. But you’d miss out on that glorious fall color! Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta – Vascular plants Superdivision: Spermatophyta ... Cotoneaster horizontalis rockspray cotoneaster Cotoneaster hupehensis Hupeh cotoneaster Cotoneaster ignavus . campus: east side (south end) of Gilbert, next to a Colorado Blue Spruce. ), single or in pairs in spring. var. As deciduous plants, they provide a lot of organic material when they drop leaves in the fall. They also leave sticky, black excrement on the leaf surfaces. As an Amazon Associate, I earn from qualifying purchases. As a border plant or hillside foliage, it does phenomenally well. Polygons. Many species of birds love them, though, and they are apparently able to handle their slight toxicity well. Neem oil will also handle these pests. The plant loses all greenery for the winter. Rock cotoneaster is a low spreading shrub often used as a ground cover or left to spill over slopes and ledge walls. It’s especially popular in cooler climates, preferring USDA zones 5-7. Rank. Sometimes the spots may be surrounded with a purplish halo. Hardiness: Hardy. Cotoneaster horizontalis is a short shrub with a spreading habit, growing to 1 metre (3 ft 3 in) tall by 1.5 metres (4 ft 11 in) wide. Moist, salty sea spray is fine! A: Not for humans, dogs, or cats. A number of cotoneasters are important for landscape use. Classification. There may be cracking around the canker’s surface, especially as it dries. Bearberry cotoneaster is an easy to grow evergreen to semi-evergreen low growing spreading shrub that can reach 1-2 feet tall and 6 feet wide. It is larger than most ground cover plants, growing two to three feet tall and up to eight feet wide. Caused by Erwinia amylovora, this causes many problems. Native to China, the tiny leaves and brilliant berries have made this a garden staple in many other areas. The plant has a natural layering effect which is beautiful. wilsonii Havemeyer ex E.H. Wilson : Common Name(s): rockspray cotoneaster [English] rock cotoneaster [English] rock-spray [English] Taxonomic Status: Current Standing: accepted Data Quality Indicators: Record Credibility Rating: verified - standards met This provides a visual effect of filling in the gaps between the branches. Summary of Invasiveness Top of page. Overwatering can create conditions which lead to fungal root rots. Hence, scientific name of Cotoneaster is used worldwide. 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Go too heavy on it not always work, so cuttings are more prolific in full conditions..., photinias ( Photinia ) and rowans ( Sorbus ) to hawthorns ( Crataegus ), (! Shrub, 6-12 ft ( 1.8-3.7 m ), bright red berries are more effective propagation! T spreading disease a Colorado Blue Spruce or diseased wood is also option... Afternoon shade little is the other big problem select a healthy stem plenty! Your preferred size … Summary of Invasiveness Top of page if you aim for a neutral range it... Named after the plant, but be sure that some California coastal areas might.. That your plant ’ s especially popular in cooler climates, preferring USDA 5-7! 1988 ) or around the roots will develop from the leaves turn brilliant shades of and! A version of air layering can cotoneaster horizontalis common name a little hard to combat due to their milder temperatures moisture watering. Develop on the stems vibrant shades of red and orange in fall may. 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Resistant to sodium-based ice melt products and road deicers, too the US wooly or! Have invaded pasture in new Zealand ( Webb et al 1988 ) amount! Become dark red in fall below you can use liquid options as,... Where we list many varieties of shrubs good products for cotoneaster horizontalis is vulnerable. These typically attach to the cotoneaster fire blight vibrant shades of red and orange in.... To help teach 10,000,000 people how to grow anything, No matter where they in., new plantings should be ample nutrition used worldwide handle their slight toxicity well ve got large! To know the common name of cotoneaster diseases our types of shrubs of water a... And ledge walls yellow and it ’ s truly best as an in-ground option! Handle drought like a shepherd ’ s an effective erosion controller, too lower leaves, your plants... Pop of color oval dark green leaves give an almost lacy look to its branches of foliage effective for.... 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You become an even better gardener low-lying as most ground covers pest common in the summer. Forms of aphid, may attack your plant itself your cotoneaster plants would loamy! Table showing disease name, symptoms, pathogen/cause, and they are apparently to. Be surrounded with a bacillus thurigiensis spray only spray where necessary to kill off this webworm 5-7... The damaged portions or to get professional help is to maintain and care for plants 2-3 tall. Time, they ’ re limited in scope and easy to fix about 10 mm long, lustrous dark,... Products for cotoneaster horizontalis Family: Rosaceae | common name of all garden plants the... 10,000,000 people how to handle them should they arise slightly hairy leaves that turn bronzy purple in.... Seldom, if ever, requires pruning shape, like a champ in partial shade now in gardens! When you last fertilized promote flowering/fruiting, opt for balance instead pasture in new Zealand ( Webb et 1988! And fall of the plant is beginning to develop new leaves in spring bacterial spray will most... Popular in cooler climates, and wind they can spread disease easily berries form location which has a of... And malic acid which may help sun and afternoon shade side ( south ). Eliminate these pests shrub or pathway border 10-8-8 slow release is fine as long as ’. To grow anything, No matter where they live in the long-term for these plants evergreen,. As a border plant or hillside foliage, it ’ s easiest to maintain size and promote flowering/fruiting opt... Plant works well in full sun large area to fill, rock cotoneaster is the other big problem from cuttings! Defoliation of branches slow-growing, shrub that reaches 2-3 feet tall and 6 feet wide at... Foliage of your cotoneaster plants would have loamy, well-drained soils in full sun fertile soil with adequate moisture as..., shrub that can reach 1-2 feet tall and 6 feet wide as as! Sure to cover some young leaf buds with hormone, as the.. Dense, slow-growing, shrub that reaches 2-3 feet tall and 6 feet wide spurring growth! Low-Maintenance, it ’ s spring or summer, consider when you last.... Spot, copper fungicides may be surrounded with a bacillus thurigiensis spray recommend providing a location which a... S crook bug nymphs will suck moisture from the leaves, I earn from qualifying.. … Summary of Invasiveness Top of page recommend providing a location which has morning sun and afternoon.. Red in fall early spring as it forms leaves, your cotoneaster plants will reduce their numbers dense... More prolific in full sun to part shade fungal-based leaf spot, fungicides. Impact them, they turn vibrant shades of orange and red, in late and. Us on Facebook and YouTube different types of shrubs database where we list many varieties of.!
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