The Zelkova serrata plant is a beautiful medium-to-large deciduous tree native to Eastern Asia. The oldest fossils attributed to Zelkova date from the early Eocene (55 million years ago) in western North America, where the genus is extinct today. Zelkova also differ in that they have single-toothed leaves whereas Ulmus have double-toothed leaves. , The genus Zelkova was common throughout northern Europe and North America as late as the Pliocene. Find species-specific information on your tree. The 'Village Green' cultivar of the Japanese Zelkova is a very common medium-sized shade or street tree in the Philadelphia region that is mostly planted in parks, in parkways along streets, in sidewalk wells, on school & college and business park campuses, and at public buildings. Also known as the Japanese Elm Zelkova serrata is best known for the cultivar ‘Green Vase’. Foliage turns lemon-yellow to bright red in autumn. Common Name: Elm - Japanese. Japanese zelkova tree has often been promoted as a substitute for the American elm (Ulmus americana), now largely eliminated as a landscape tree because of its susceptibility to Dutch elm disease.While the Japanese zelkova doesn't have quite the charm of the American elm, it is an attractive tree and well worth planting. Late Pleistocene Zelkova Extinction in Central Italy. As you can see, it has a beautiful shape. It has a significant tolerance against Dutch Elm disease and many types of insects, and is also known to be tolerant to pesky deer. Zelkova Nire is a bonsai for outside. The bark is smooth, dark brown. Good shade tree for lawn or park. Bark smooth-gray initially. Japanese Elm: Zelkova serrata ‘Mushashino’ Height: 12 metres at maturity Width: 4 metres at maturity Growth Rate: Moderate to fast Growth Habit: Tight dense branches. The fruit is a dry, nut-like drupe with a dorsal keel, produced singly in the leaf axils. Narrow heart-shaped leaves, fine pointed with slender-tipped teeth. Zelkova serrata. serrata in Japan and mainland eastern Asia, and Zelkova serrata var. Gregor Kozlowski, Joachim Gratzfeld et al. Pistillate and hermaphrodite flowers are solitary, or rarely in clusters of two to four, in the upper leaf axils of young branchlets. Aphids, leafhoppers, gall mites, spider mites or leaf spots can occur in rare cases. The winter silhouette and fine ramification of the Japanese greybark elm are extremely important and its nicest feature. How to Grow Zelkova serrata Plants in your Garden Gardener's HQ Guide to Growing Keaki / Japanese Zelkova. Repotting: Repot the zelkova every two or three years, old big trees less often, and prune the roots carefully. Zelkova serrata, commonly called Japanese zelkova, is a medium to large deciduous tree, typically growing to 50-80’ tall with a spreading, generally upward-branching, vase-shaped crown.It is native to Japan, Taiwan and eastern China. This tree, native to Japan, Korea, and China, is probably the oldest Zelkova in Lancaster County. Fertilizing: Apply solid organic fertilizer every four weeks or use a liquid fertilizer every week during the growing season. This species is widely grown as a bonsai specimen, prized for its flaking bark and attractive arching crown. With a reasonably fast growth habit it has become a … Japanese Zelkova is a tough urban tree for residential shade and street plantings. 137 South Duke Street, Lancaster PA .  Phylogeography has, however, also been used to document more ancient patterns, with some of them presumably dating as far back as the early Miocene. The bark is a smooth, reddish brown when young with prominent cherry-like lenticels. These two Zelkova species are the two with the most restricted natural distribution—both are small island endemics. tarokoensis (Hayata) Li on Taiwan which differs from the type in its smaller leaves with less deeply … Zelkova or Japanese Elm as it is better known is a deciduous tree with a lovely upright habit. If you need help identifying your tree, try our Bonsai tree identification guide. Zelkova is polygamous. It can reach a height of 30 meters (100ft) and develops the characteristic broomstyle shape with a straight trunk fanning out into many branches and twigs. Zelkova, Japanese Elm . The Japanese zelkova, is a deciduous tree that typically grows to a height of around 30m. Japanese Zelkova is an extremely hardy tree and prefers full sun but will tolerate any conditions. A native of Japan, Taiwan and eastern China, Japanese zelkova wins gardeners’ hearts with its graceful shape, dense foliage and attractive bark. . Zelkova serrata and Z. carpinifolia are grown as ornamental trees. For more detailed information on these techniques, try our Bonsai tree care section. Z. sicula and Z. abelicea are the two taxa considered to be at most risk of extinction (Critically Endangered and Vulnerable). The bark is grey and smooth and the young shoots are reddish at first. Quotations .  The species is highly endangered through habitat fragmentation and destruction, overgrazing, fire and water stress. CS1 maint: DOI inactive as of September 2020 (, "Molecular evidence for glacial refugia of mountain plants in the European Alps", "Some evolutionary consequences of being a tree", "Small does not mean young: age estimation of severely browsed trees in anthropogenic Mediterranean landscapes", "Footprints of past intensive diversification and structuring in the genus. Zelkova has in fact been promoted in recent years as a substitute for American elm (Ulmus americana) because of its resistance to Dutch elm disease. Zelkova is a see also of elm. It is perfect for avenues and has stunning Autumn colours of yellow, copper, bronze and red. A cold but frost-free greenhouse, garage or shed is a good winter place for the zelkova. ZELKOVA SERRATA Common Name: Japanese Gray-Bark Elm. In winter the ELONGATED, serrated edged, LEAVES turn from deep green to crimson/bronze, orange/yellow.. There are two varieties: Zelkova Serrata var. — Lozenets, Kurilo, Chukurovo in Sofia Region, Dospey in Samokov Region, Pernik, Pirin Mine in Blagoevgrad Region, Bobov Dol in Kyustendil Region; Zelkova praelonga Berger — Pirin Mine in Blagoevgrad Region. SITUATION. It is often grown as an ornamental tree, and used in bonsai. There are two stipules at each node, though these are caducous (shed early), leaving a pair of scars at the leaf base. Caucasian elm; Japanese elm; keaki, keyaki, kiaki; Derived terms . But keep in mind that the precondition for defoliation is always a strong and healthy tree.Â. Zelkova serrata (Japanese zelkova, Japanese elm or keyaki; Japanese: 欅 (ケヤキ) keyaki /槻 (ツキ) tsuki; Chinese: 榉树/櫸樹 jǔshù; Korean: 느티나무 neutinamu) is a species of the genus Zelkova native to Japan, Korea, eastern China and Taiwan. Reasonably fast growing, good substitute for Ulmus Procera. Zelkova (from Georgian ძელქვა dzelkva, 'stone pillar') is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. , The name Zelkova derives from the native name of Z. carpinifolia in the Georgian language – one of the Kartvelian languages spoken in the Caucasus, as shown by the Georgian name, ძელქვა (dzelkva), from ძელი (dzeli) meaning 'bar' or 'pillar', and ქვა (kva) meaning 'rock', 'stone' The tree was often used for making rock-hard and durable bars for building and furniture. Below, we explain the basic care to have a beautiful bonsai Zelkova. Traditionally in autumn the branches and twigs of younger specimens are tied together in bundles and the bundles again are tied together, in order to promote the broom shape. As a curiosity, the Zelkova parvifolia or Japanese elm is known by the name of “Kejaki”. Kov. The crown is shorter and more rounded than the American elm. Use a standard soil mix. Propagation: The zelkova can be propagated from seed and cuttings. For quotations using this term, see Citations:zelkova. We guarantee a careful packaging. Zelkova: More questions than answers. Zelkova Serata Plant Profile and Growing Hints. Japanese Zelkova Tree Facts. , The Sicilian Zelkova Z. sicula, only discovered in 1991, is listed as an endangered species. It is also important to have a scarless trunk and a perfect nebari. The Zelkova with the widest natural distribution, Z. serrata, is also the most common Zelkova in botanic garden collections . In spring, before the buds open, the wire or string is removed. Japanese elm - Zelkova: More tips. However, extensive Pleistocene glaciation has confined the genus to its present range to the eastern Mediterranean islands and the Caucasus, and in eastern Asia where only local glaciation occurred. It aimed to assess the diversity within and among species using DNA from two cellular compartments that have different modes of inheritance and trace different histories. General information: Zelkova is often listed as a replacement for American Elm since it has roughly the same vase shape and grows 90 to 100 feet tall with a 60 to 80 foot spread.Zelkova is massive, with the trunk capable of growing to four feet or more in diameter. Serrata in Japan and in mainland Eastern Asia, and Zelkova Serrata var. Watering: Water the zelkova regularly and don't let the rootball dry out, but take care not to overwater the tree. You can differentiate these trees from an American Elm due to the Zelkova's unwinged fruit and symmetrical rather than uneven leaves. The leafsize decreases quickly when the zelkova grows in a pot. It is noted for its graceful shape, clean foliage, attractive bark and resistance to Dutch elm disease. Zelkova serrata 'Kiwi Sunset' - of asian origin - is often grown as an ornamental specimen tree or shrub of weeping habit even though it can reach a height of 6m. Noteworthy Characteristics. It was first brought to the United States in 1862. The leaves are alternate, with serrated margins, and (unlike the related elms) a symmetrical base to the leaf blade. Compact. The perianth and stigma are persistent. The downside is that the elm can overgrow very quickly and so it needs regular pruning and… This content is for Basic, Plus, Premium, and Free members only. Mature Japanese Zelkova. The leaves are alternate, with serrated margins, and (unlike the related elms) a symmetrical base to the leaf blade. There are two varieties, Zelkova serrata var. Caucasian zelkova (Zelkova carpinifolia) Chinese zelkova (Zelkova sinica) Cretan zelkova (Zelkova abelicea) Synonyms . This species is native from Northern Japan. The Zelkova is an extremely resistant tree in its cultivation for bonsai and can be both indoors and outdoors.  The wood is hard, used for making furniture. Tree of the year: Zelkova. , Today, the genus comprises six species with disjunct distribution patterns: three in eastern Asia [Zelkova serrata (Thunb.) Schneid. The development of a perfect radial nebari is an important goal. Bonsai trees make a fascinating feature for a cool, bright room or conservatory. Older trees can be partially defoliated by removing the larger leaves in order to let more light reach the smaller leaves inside the crown. They vary in size from shrubs (Z. sicula) to large trees up to 35 m (115 ft) tall (Z. carpinifolia). The species can tolerate a slight frost and is easy to care for. The diameter of the trunk is 13 cm.  Japanese Elm tree is a fantastic tree to Bonsai. Check out the stock image for an example of how beautiful a bonsai can become. The Japanese elm is a deciduous tree which is native to Japan, Korea and Taiwan. Makino; Zelkova schneideriana Hand.-Mazz. https://en.wikipedia.org/w/index.php?title=Zelkova&oldid=992488869, CS1 maint: DOI inactive as of September 2020, Articles containing Georgian-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 December 2020, at 15:05. The bright green, pointed leaves have attractive toothed edges. Pruning and wiring: Let the new shoots grow until they have produced 4 to 6 leaves and then cut them back to 2 leaves. Andrews, S. (1994). Young nursery stock has great quality for bonsai purposes, you can start wire training straight away! The leaves are simple and ovate to oblong-ovate with serrated margins, rough on top and glabrous on the underside. Zelkova (from Georgian ძელქვა dzelkva, 'stone pillar') is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Aug 7, 2018 3:26 PM. The Zelkova is in fact quite similar to the Ulmus (the Chinese In winter keep the rootball slightly moist. The Japanese greybark elm is a classic Japanese bonsai and the prototype of the broomstyle, but it can also be styled in other upright shapes. It is noted for its graceful shape, clean foliage, attractive bark and resistance to Dutch elm disease. Also used in bonsai, it's a hardy, attractive, small tree with lime green, serrated foliage that turns yellow in Autumn before falling. The two known populations close to Syracuse (Bosco Pisano and Ciranna) comprise a small number of low shrubs suffering from severe overgrazing; the natural mature size of undamaged specimens is unknown. A cold but frost-free greenhouse, garage or shed is a good winter place for the zelkova. Placement: The Japanese greybark elm likes a place in full sun during the growing season or, if the sunlight is very intense in your country, semi-shade during the hottest weeks.  The retrieval of ancient patterns may be specific to tree species, which are assumed to evolve more slowly than herbaceous plants and shrubs. Follieri, M., Magri, D., & Sadori, L. (1986). Zelkova serrrata 'Japanese Elm Tree' The Japanese Elm or Zelkova is a medium to large sized deciduous tree that can grow up to 12m tall and 10m wide. The ideal pH value is 5.5 to 6.5.  Zelkova trees live for centuries, which is a good indication that ancient patterns might be recovered using molecular markers. The Japanese elm is a deciduous tree which is native to Japan, Korea and Taiwan. Overwatering can cause root rot.  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