Arbors refer to tall trees with independent trunks arising from the roots, and the trunk and crown are clearly distinguished. Woody plants with an upright trunk and usually six to tens of meters in height are called trees. They tend to be tall trees with an obvious tall trunk.

The main arbor plants commonly used in courtyards are:

#1 Sophora japonica

The distribution range is native to Yunnan (Yuanjiang), China. It is cultivated in large quantities in southern China. Born on grassy slopes and mountains at an altitude of 500-1800 meters.

Characteristics: Large and bright flowers with golden color. It likes light, can tolerate a little shade, and grows quickly. It should grow in loose, well-drained soil. It blooms vigorously in fertile soil and can withstand pruning.

Ornamental value: Sophora japonica has large blooms, bright colors, strong adaptability and resistance, and vigorous growth. It is an excellent landscaping tree species.

#2 Red-leaved tallow tree

The distribution range is native to tropical America. It has been cultivated in Fujian and Taiwan in my country in recent years. It is used as a street tree with red leaves for viewing. In recent years, greenhouses in Beijing have begun to cultivate it.

Characteristics: The bark is dark gray, with shallow longitudinal lobes, and the leaves are papery. It likes a sunny, warm and humid environment and requires loose, fertile and well-drained soil.

Ornamental value: The leaves are red all year round. It is a very beautiful potted foliage plant. It is used for garden decoration and environmental beautification in warm areas.

#3 Camphor tree

Distribution scope Camphor trees are mainly distributed in the south of the Yangtze River Basin in China, with the largest number in southern areas such as Jiangxi, Zhejiang, Taiwan, Guangdong, Fujian, and Hunan.

Characteristic leaves are thin leathery, ovate or elliptical-ovate, with 3 veins emerging from the base. It likes light, seedlings and saplings are shade-tolerant, like warm and humid climates, are not cold-tolerant, are afraid of cold, are intolerant of drought, barren and saline-alkali soil, have strong germination ability, and are resistant to pruning. It has strong resistance to sulfur dioxide, ozone, and smoke pollution, and can absorb a variety of toxic gases.

Ornamental value: The camphor tree species has dense branches and leaves, a large crown and dense shade, and a majestic posture. It can smoke and retain dust, conserve water sources, solidify soil and prevent sand, and beautify the environment. It is an excellent tree species for urban greening and is widely used as courtyard shade. Trees, street trees, shelterbelts and landscape forests are often used for garden viewing.

#4 Melaleuca

Distribution range native to Australia. It is cultivated in Guangdong, Taiwan, Fujian, Guangxi and other places in China.

Characteristics include pinnately compound leaves and white panicles of flowers in spring. It likes a warm and humid environment, requires sufficient sunshine, has strong adaptability, can tolerate drought, high temperature and infertile soil, and can also tolerate light frost and short-term low temperatures around 0℃. The soil requirements are not strict.

A shade tree with ornamental value. Melaleuca bark has various colors. The bark is beautiful and fragrant. It can be used as a barrier tree or street tree. Trees are often planted along roadsides as their bark can easily cause fires, making them unsuitable for afforestation.

#5 Poinciana

Distribution range is native to Madagascar, Africa. It is widely introduced in tropical and warm subtropical regions around the world. It has been introduced and cultivated in Taiwan, Hainan, Fujian, Guangdong, Guangxi, Yunnan and other provinces and regions in China.

Characteristics: The crown is umbrella-shaped, the petals are five-petaled, and the flowers are bright red with a yellow halo. Tropical tree species, like high temperature, humidity and sunny environment, not cold tolerant, suitable for deep, fertile, organic matter-rich sandy loam; afraid of water accumulation, must have good drainage, more drought-tolerant; tolerant of barren soil.

Ornamental value: The phoenix tree has a tall crown, red flowers and green leaves during the flowering period, and the tree is like fire. It is magnificent. Because "the leaves are like the feathers of a flying phoenix, and the flowers are like the crown of a red phoenix", it is named phoenix tree. It is a famous tropical ornamental tree species. It is widely planted in botanical gardens and parks in southern cities in my country as an ornamental tree or street tree.

#6 Duying

Distribution range is found in southern China and southern Guizhou: Guangdong, Guangxi, Fujian, Taiwan, Zhejiang, Jiangxi, Hunan, and Yunnan. Distributed in Japan. The type specimen was collected from Ryukyu, Japan.

Characteristics include pinnate veins and racemes that are light green and axillary. It likes a warm and humid environment and has slightly poor cold tolerance. Slightly shade-tolerant, with well-developed root system, strong germination and resistance to pruning. Prefers well-drained, moist, fertile, acidic soil. It is suitable for growing in acidic yellow soil and red-yellow soil mountainous areas. If planted on plains, it must be well-drained.

The most obvious feature of Ornamental Value is the red leaves hanging high on the treetops before they fall, slowly swaying in the wind, and dynamic like a school of small fishes. It is an ideal choice when viewing leaves and trees. Plants worthy of stopping and admiring are very suitable as landscape additions, greening or ornamental trees for residential gardens.

#7 Beautiful Kapok

The distribution range is native to South America and is cultivated in tropical areas. It is widely used in southern cities such as Guangdong, Fujian, Guangxi, Hainan, Yunnan, and Sichuan in China. Cultivation.

Characteristic flowers are solitary, with lavender corolla and white center. It likes light but tolerates a little shade, likes a high-temperature and humid climate, is slightly tolerant of drought and barrenness, avoids water accumulation, and has no strict requirements on soil quality, but sandy loam or impact soil with loose soil and good drainage is preferred; it is wind-resistant, fast-growing, and has strong germination ability. .

The beautiful Kapok tree has an upright trunk with thorns on the main trunk. The canopy is umbrella-shaped, the leaves are green, and the adult tree trunk is wine bottle-shaped. In winter, when the tree is in full bloom, the tree is purple and beautiful, and it is known as "Beauty Tree" is an excellent flower-arboring tree, a high-grade tree species for garden greening and beautification, and can also be used as a high-grade street tree.

#8 Pot Stand Wood

The distribution range is native to Yunnan and Hainan. It grows in evergreen forests in tropical and subtropical mountains or in tropical rainforests in valleys. It often grows in groups and can be distributed vertically up to 1,000 meters above sea level.

Characteristics: The large branches are layered and whorled, and the small branches are green and opposite. It likes to grow in an environment with high air humidity, fertile soil and humid environment. It grows well beside water and ditches, but avoid long-term accumulation of water in the soil. It has certain resistance to wind and pollution.

Ornamental value: The tree has a beautiful shape, bright green leaves, tower-shaped branches, and slender fruits like noodles. It also has certain wind resistance and can be used as a greening tree in South China cities. It is often planted in parks for viewing or as street trees.

#9 Mahogany

Distribution range Now it is cultivated in all tropical regions. In China, it is cultivated in Fujian (Xiamen), Taiwan, Guangdong, Guangxi (Nanning), Hainan (Jianfengling) and Yunnan.

Characteristics: The crown is strong, and the seeds are winged and fall like propellers. It is a positive deep-rooted tree species that likes warmth and sunshine, is relatively drought-tolerant, and has loose soil requirements. It can grow normally on arid and barren slopes, but it grows well in moist, deep, fertile and well-drained soil.

Ornamental value Mahogany has lush foliage and beautiful tree shape. It is an excellent courtyard shade tree and street tree.

#10 Ficus weeping leaf

Distribution range Ficus weeping leaf is produced in Guangdong, Guangxi, Hainan, Yunnan, and Guizhou. In Yunnan, it grows in humid mixed wood forests at an altitude of 500 to 800 meters.

Characteristics: The leaves are dense, evergreen all year round, and the leaves are fresh in color. Native to tropical Asia. It likes a warm and humid environment, needs sufficient sunshine, is relatively cold-tolerant, and is also tolerant of shade. The soil requires fertile, well-drained loam, and the temperature in winter should not be lower than 5℃.

Ornamental value: The ficus has dense branches, evergreen all year round, and fresh leaves. It is suitable for potted plant viewing. It is often used to decorate the halls and entrances of hotels and public places, and is also suitable for family living rooms and Window sill decoration.

#11 Pomegranate

It is native to the Balkan Peninsula to Iran and adjacent areas, and is cultivated in temperate and tropical regions around the world.

Characteristic flowers: minute-shaped flowers and tube-shaped flowers, with bright red outer skin. It likes a warm and sunny environment, tolerates drought, cold, barrenness, and is intolerant of waterlogging and shade. The soil requirements are not strict, but it is suitable for cultivation in sandy soil with good drainage.

Ornamental value: The tree is graceful, with beautiful branches and leaves. The young leaves in early spring are green and graceful; the flowers are blooming in midsummer and the colors are bright; Wherever they are planted in the courtyard, they should be planted along paths, beside streams, on slopes, or beside buildings. They should also be made into various pile scenes and used for flower arranging in vase for viewing.

#12 Mango

Distribution range: Yunnan, Guangxi, Guangdong, Sichuan, Fujian, and Taiwan. It grows on hillsides, river valleys or wilderness forests at an altitude of 200-1350 meters. Distributed in India, Bangladesh, Indochina and Malaysia.

Characteristics: The leaves are clustered on the top of the branches, the leaves are long and lanceolate, and the fruit is large and crooked-ovate. Nature likes warmth and is intolerant of cold and frost. It likes light and does not have high soil requirements.

Ornamental value: The mango tree has a spherical crown, an evergreen tree, and a large canopy density. It is a good tropical garden and street tree species.

#13 Lychee

Distribution range is in the southwest, south and southeast of China, with the most popular cultivation in Guangdong and southern Fujian. It is also cultivated in southeastern Asia, and introduction records have been recorded in Africa, America and Oceania.

Characteristic fruits are heart-shaped or spherical. It likes high temperature and humidity, and prefers light and sunshine. Its genetics require relatively low temperatures during the flower bud differentiation period. Sunny and warm weather but not dry and hot weather during the flowering period is most beneficial. Too low humidity, continuous rain, dry and hot weather or strong north wind are not conducive to flowering and pollination. .

Ornamental value: The tree has beautiful shape, lush branches and leaves, bright green leaves, evergreen all year round, thick shade covering the ground, and a canopy-like shape. It is an excellent shade tree and landscape tree. It is most suitable to be planted alone, in clusters in the courtyard, and as street trees on both sides of the road. It can also be planted on green lawns and flower beds in the park, between rocky slopes, and beside canals and ponds. It can also be combined with production patches to form forests. Litchi Bay in Guangzhou is famous for its patch plantings.

#14 Bayberry

Distribution range Bayberry is distributed in provinces in China such as Yunnan, Guizhou, Zhejiang, Jiangsu, Fujian, Guangdong, Hunan, Guangxi, Jiangxi, Sichuan, Anhui, Taiwan, etc. , there is a small amount of cultivation abroad, such as Japan and South Korea, and it is also distributed in Southeast Asian countries, such as India, Myanmar, Vietnam, the Philippines and other countries.

Characteristics The bark is gray and the branchlets are nearly hairless. Drupe is spherical in shape and tastes sweet and sour. It likes acidic soil and is native to China's temperate and subtropical humid climates on hillsides or valley forests at an altitude of 125-1500 meters. It is similar in distribution to citrus, loquat, tea tree, moso bamboo, etc., but its cold resistance is stronger than citrus and loquat.

Ornamental value: Garden ornamental bayberry crown is spherical, with compact branches and sparse branches and leaves. In summer, there are numerous red fruits among the green leaves, which is very beautiful.

#15 Bitao

Distribution range It is native to China and is distributed in northwest, north China, east China, southwest and other places. Major cities: Jiangsu, Shandong, Anhui, Zhejiang, Shanghai, Henan, Hebei and other places. It has been introduced and cultivated in various countries around the world.

Characteristic branchlets are reddish-brown, hairless, and the leaf tips are acuminate. It likes sunshine, tolerates drought, and is intolerant of humid environments. It likes a warm climate and has good cold tolerance. The soil is required to be fertile and well drained. It doesn't like stagnant water. If planted in a low-lying area with stagnant water, dead seedlings will easily appear.

The ornamental value is widely used in landscaping on lakesides, streams, roadsides, parks, etc. It is widely used in small greening projects such as courtyard greening embellishments, private gardens, etc. The greening effect is outstanding, it can be planted in patches to form a peach forest, or it can be planted alone to embellish the lawn.

#16 King Coconut

Distribution range is native to Cuba. Distributed in Guangdong, Hainan, Guangxi and Taiwan, China; also cultivated in other tropical areas around the world.

Characteristics: Pinnately compound leaves, leaflets lanceolate, green leaf sheaths, surrounding the top of the stem. It has low cold tolerance and strong wind resistance. It is slightly tolerant of shade in its young stage and likes light when it is mature. It likes acidic soil with deep and fertile soil, is intolerant of dryness and barrenness, is more tolerant of drought, and is more tolerant of water and moisture.

Ornamental value: It is commonly cultivated in hot areas of southern China. It is mainly planted in open fields as road trees, or planted next to high-rise buildings, on both sides of the gate, in the center of the flower bed, on the waterfront, on the lawn, etc. Suitable for planting or row planting. The tree has a beautiful shape and is widely used as a street tree and garden greening tree.

#17 Frangipani

Distribution range is native to Mexico; it has been widely planted in tropical and subtropical Asia. It is cultivated in Guangdong, Guangxi, Yunnan, Fujian and other provinces of China, and is found wild in the mountains of southern Yunnan.

Characteristics: full leaf margin, funnel-shaped corolla, white outside and yellow inside, fragrant. It likes high temperature, humidity and a sunny environment, but can also grow in a semi-shady environment. Tolerant to drought, avoid waterlogging, good stress resistance, poor cold resistance.

Ornamental value Frangipani has extremely high ornamental value. The whole tree looks symmetrical, natural and beautiful. In landscaping, frangipani has multiple effects such as greening, beautification, and fragrance at the same time. It can be used in various configurations such as solitary planting, cluster planting, and waterfront embellishment in garden layouts. It is deeply loved by people and has become an indispensable fine tree species in greening in southern China.

#18 Bodhi tree

Distribution range: It is mostly cultivated in Guangdong (coastal islands), Guangxi, and Yunnan, China. It is also distributed in Japan, Malaysia, Thailand, Vietnam, Bhutan, Sikkim, Nepal, Pakistan and India, and is mostly cultivated. However, it is found wild in the Himalayas, from Rawalpindi, Pakistan to Bhutan.

Characteristic leaves are alternate, nearly leathery, triangular-ovate. It likes light, high temperature and humidity, and is not frost-resistant; it has strong resistance to pollution and is not strict with soil requirements, but fertile, loose, slightly acidic sandy loam is preferred. Linden tree saplings grow rapidly in tropical areas.

Ornamental value: The Bodhi tree has extended branches, a tall tree shape, luxuriant branches and leaves, a wide crown, and is elegant and impressive. It is an excellent ornamental tree species and is suitable for use as a greening tree species for courtyard walkways.

#19 Syzygium

It is distributed and cultivated in Taiwan, Fujian, Guangdong, Guangxi, Guizhou, Yunnan, Hainan and other provinces. It is common wild in South China and is also cultivated for food. Distributed in Indochina, Malaysia, Indonesia and other places.

Characteristic pinnate veins, 3 to more flowers arranged in cymes and then panicles. It is a water- and moisture-tolerant plant that likes warm and hot climates and is a tropical tree species. It likes to grow in riverside and valley wetlands. It likes light, tolerates drought, high temperature and drought, has no strict requirements on soil, has well-developed root system, rapid growth and strong adaptability.

Ornamental value: Syzygium has a plump and rich canopy, and its mosaics, leaves, and fruits can be viewed. It can be used as a shade tree in the courtyard, an embankment, or a windbreak tree.

#20 Araucaria

The distribution range is native to South America, Australia and the Pacific Islands, and southeastern coastal areas such as Queensland in Oceania. It is cultivated in Guangdong, Fujian, Hainan, Yunnan, and Guangxi, China. . In the Yangtze River Basin and major cities to the north, potted plants are grown in greenhouses for overwintering.

Characteristics: The large branches are flat or oblique, and the small branches are densely arranged in a nearly pinnate shape. It likes light, and seedlings like shade. It likes a warm and humid climate and is intolerant of drought and cold. Likes fertile soil. It grows quickly, has strong tillering ability and strong resistance to wind. Potted plants require loose and fertile culture soil with high humus content and strong drainage and air permeability.

Ornamental value: Araucaria is tall in shape and graceful in posture. It is suitable to be planted alone as a landscape tree or as a memorial tree, or as a street tree. However, it is advisable to choose a location without strong winds to avoid deflection of the tree crown. Araucaria is a spire-shaped tree with lush branches and leaves that are triangular or oval. It is one of the world's most famous garden trees.

#21 Tiegan Begonia

The distribution range is distributed in China and Myanmar; in China, it is distributed in Shaanxi, Gansu, Sichuan, Guizhou, Yunnan, and Guangdong. It is often cultivated in various parts of China, mainly in Sichuan, Hubei, Shandong, Anhui, Zhejiang and other provinces. Hubei is mainly cultivated in the mountainous areas of western Hubei.

Characteristics: thorns, smooth branchlets, tapering leaf tips, and pink or white flowers. It likes light but tolerates a little shade, has certain cold tolerance, is not strict with soil, and tolerates barren soil, but likes fertile loam with good drainage.

Ornamental value: The dense and thorny branches can be used as green beetles. Street trees can be planted on both sides of roads in parks, courtyards, campuses, squares, etc. It can be used as a unique solitary ornamental tree or as an ornament in clusters of three or five in garden sketches or garden green spaces. It can also be cultivated into single or multi-stemmed trees and shrubs to be used as forest or courtyard ornaments. It is elegant and pretty to enjoy flowers in spring and fruits in summer and autumn. , so colorful that people will never tire of it and please them.

#22 White Magnolia

Distribution range Originally from Java, Indonesia, it is now widely planted in Southeast Asia. Cultivation is very popular in Fujian, Guangdong, Guangxi, Yunnan and other provinces in my country. There are many potted plants in various provinces and regions in the Yangtze River Basin, which overwinter in greenhouses.

Characteristics: The crown is oval, the winter buds are scaly, and the flowers are terminal. Magnolia has a wide range of suitable temperatures, and its optimum temperature zone is in warm temperate to subtropical areas. It has fleshy roots, large flowers, wide and lush leaves, and a large demand for water.

Ornamental value: The flowers are white and fragrant, blooming in summer and autumn, with a long flowering period and dark green leaves. It is a famous garden ornamental tree species and is often planted as a street tree. Since magnolia has a broad affinity with many tree species of the Magnoliaceae family, using magnolia as a carrier can cultivate and improve the excellent traits of various magnolia tree species and improve the ornamental value of gardens.

#23 White Orchid

Distribution range It is native to Java, Indonesia, and is now widely planted in Southeast Asia.

Cultivation is very popular in Fujian, Guangdong, Guangxi, Yunnan and other provinces in China. There are many potted plants in various provinces and regions in the Yangtze River Basin, which overwinter in greenhouses.

Characteristics: The bark is gray-white, the young branches are evergreen, and the leaves are oblong and green. It likes light, is afraid of high temperatures, is not cold-tolerant, and is suitable for slightly acidic soil. It likes warmth and moisture, is intolerant to drought and waterlogging, and is sensitive to toxic gases such as sulfur dioxide and chlorine, with poor resistance.

Ornamental value: The white orchid plant is upright, branched, and elegant. It can be cultivated in the open field in the south and is the backbone tree species in southern gardens. Northern potted plants can be used to decorate courtyards, halls, and conference rooms. Small and medium-sized plants can be displayed in the living room or study room.

#24 Guava

Distribution range is native to tropical America. It was introduced to China around the end of the 17th century. It is cultivated in Taiwan, Hainan, Guangdong, Guangxi, Fujian, Jiangxi, Yunnan and other provinces, and has become a wild fruit tree in some places.

Characteristics: Single leaves are opposite, with downy backs, and flowers are solitary or clustered. It grows in wasteland or low hills; it is suitable for tropical climate, is afraid of frost, and has loose soil requirements. It grows best in well-drained sandy loam and clay loam.

Ornamental value: The guava tree has a beautiful shape and can be used as a potted plant or garden ornamental plant.

#25 Magnolia grandiflora

Distribution range native to southeastern North America. It is cultivated in cities south of the Yangtze River Basin in my country. It is also cultivated in Lanzhou and Beijing parks.

Characteristics: The leaves are leathery, with rust-colored hairs on the back, and the edges are slightly rolled. Weakly positive, likes a warm and humid climate, resists pollution, and is intolerant of alkaline soil. It is quite tolerant of shade during the seedling stage. Likes warm, humid climate. It is relatively cold-tolerant and grows well in fertile, deep, moist and well-drained acidic or neutral soil. The root system is deep and wide, and it is quite resistant to wind. Few pests and diseases.

The ornamental value can be used as landscape trees, street trees, and courtyard shade trees. Magnolia grandiflorum is a majestic tree with large leaves and thick shade. Its flowers resemble lotus and are fragrant. A beautiful ornamental tree species for landscaping. It should be planted alone, in clusters or in rows.

#26 Osmanthus

Distribution range Garden osmanthus is native to the eastern section of the Himalayas in southwest China, and is also distributed in India, Nepal, and Cambodia. Wild osmanthus grows in southwest China, Sichuan, southern Shaanxi, Yunnan, Guangxi, Guangdong, Hunan, Hubei, Jiangxi, Anhui, Henan and other places. It is now widely planted in the Huaihe River Basin and areas south of it. Its suitable growing area can be found in the north. Arriving at the lower reaches of the Yellow River, you can reach Guangdong, Guangxi, Hainan and other places in the south.

Characteristics: The bark is rough and the leaves are opposite in gray-brown or gray-white. Adapted to subtropical climate areas. Sex likes warmth and moisture. It has strong stress resistance, can withstand both high temperature and cold, prefers sunshine, and can tolerate shade.

Ornamental value In modern gardens, following ancient practices, Osmanthus fragrans is used as a greening tree species by making full use of the advantages of luxuriant branches and leaves and being evergreen all year round. Their configuration forms are eclectic, including pairs of plants, scattered plants, group plants, and row plants. Osmanthus is evergreen all year round, has luxuriant branches and leaves, blooms in autumn, and is full of fragrance. It can be said that it "exclusively dominates the fragrance in three autumns".

#27 Tianzhugui

The distribution range is distributed in North Korea, Japan and China; in China, it is distributed in Jiangsu, Zhejiang, Anhui, Jiangxi, Fujian and Taiwan.

Characteristics: There are white powder on the back of the leaves, hairs, and 3 veins from the base. Born in evergreen broad-leaved forests in low mountains or offshore at an altitude of 300-1000 meters or less.

Ornamental value: Tianzhu osmanthus is often used as a street tree or tree due to its strong growth, rapid canopy expansion, and ability to survive the winter in the open. In addition, the tree has beautiful appearance, is resistant to pollution, has high ornamental value, and has few pests and diseases. Garden tree cultivation. At the same time, it is also used for afforestation and cultivation.

#28 Sheep's hoof beetle

Distribution range is found in southern China. Distributed in Indochina, India, and Sri Lanka. It is widely cultivated in gardens and as street trees in subtropical areas of the world.

Characteristic leaves are alternate, round or broadly ovate with deep concavities. It likes sunshine and a warm and humid environment, but is not cold-tolerant. It prefers a warm, humid, rainy climate and sunny environment, and prefers acidic sandy loam with deep, fertile and well-drained soil. It has strong adaptability and certain cold resistance.

Many varieties of ornamental value can be used as street trees or greening trees. It is widely cultivated in gardens and pathways in subtropical areas of the world.

#29 Wintersweet

Distribution range: Wild in Shandong, Jiangsu, Anhui, Zhejiang, Fujian, Jiangxi, Hunan, Hubei, Henan, Shaanxi, Sichuan, Guizhou, Yunnan and other provinces; Guangxi It is cultivated in China, Guangdong and other provinces and regions, and grows in mountain forests. It has been introduced and cultivated in Japan, Korea, Europe and America.

Characteristic branches and stems are square, the tips of the leaves are tapering, and the surface is dark green. It likes sunshine, can tolerate shade, cold and drought, and avoids waterlogging. It is the main flower and tree for viewing in winter. It is afraid of wind, relatively cold-tolerant, has strong drought tolerance, and is afraid of waterlogging, so it is not suitable for cultivation in low-lying areas.

Ornamental value: Wintersweet is an ideal and valuable flower for winter viewing. It is more widely used in urban and rural garden construction. It can be planted in sheets to form a wax plum blossom forest, as the main scenery configuration, mixed planting configuration, leaky window view, and rock rockery configuration, etc.

#30 Sakura

Distribution Range There are more than a hundred species of Sakura plants, distributed in the temperate zones of the northern hemisphere: Asia, Europe and North America. The main species are distributed in western and southwestern China and Japan. and North Korea. Garden cultivation is practiced in cities such as Beijing, Xi'an, Qingdao, Nanjing, and Nanchang in China.

Characteristics: leaves are alternate, calyx tube is bell-shaped or tubular, and flowers are solitary or clustered. It is a temperate and subtropical tree species that likes sunshine and warm and humid climate conditions, and has certain cold resistance. The soil requirements are not strict and it is not tolerant to saline-alkali soil. It has certain cold and drought tolerance.

Ornamental value: Cherry blossoms are bright in color and have luxuriant branches and leaves. They are an important flowering tree species in early spring and are often used for garden viewing. Planted in groups, it can also be planted on hillsides, courtyards, roadsides, and in front of buildings. They can be planted in large areas to create a "sea of ??flowers" landscape, they can be dotted in small clusters in green spaces to form brocade groups, or they can be planted in isolation to create a painterly impression of "a little red among all the greenery".

#31 Purple Magnolia

The distribution range is produced in Fujian, Hubei, Sichuan and northwest Yunnan, China. Born on the forest edge of hillside at an altitude of 300-1600 meters. This species is a traditional flower in China for more than 2,000 years. It is cultivated in all major cities in China and has been introduced to cities in Europe and the United States. Its colorful flowers are well-known at home and abroad.

Characteristics are clustered, with purple-brown branchlets and sharp or acuminate leaf tips. It likes a warm, humid and sunny environment, and is relatively cold-tolerant, but not drought and saline-alkali tolerant. It is afraid of flooding and requires fertile, well-drained sandy loam soil.

Ornamental value: Purple magnolia is a famous ornamental flower in early spring. When it blooms in early spring, the tree is full of purple-red flowers. It is graceful and graceful, and has a unique style. It is suitable for planting in the front and back of the hall in classical gardens. Can be planted alone or scattered in a small courtyard.

#32 Indian rubber tree

The distribution range is native to Bhutan, Sikkim, Nepal, northeastern India (Assam), Myanmar, Malaysia (northern), Indonesia (Sumatra, Java). Yunnan, China (Ruili, Yingjiang, Lianshan, Longchuan) has wild species at 800-1500 meters.

Characteristics: The leaves are alternate, thickly leathery, with long stalks, and the young buds are red and have bracts. Warm and humid growing environment, strong adaptability to light. Fully watered, prefers fertile and moist acidic soil, is more tolerant of water and moisture, and avoids drought.

Ornamental value: It is often planted in greenhouses or indoors in various parts of the world (including northern China). It can also be planted in gardens as a single tree to form a forest.

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