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