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