In addition to Kunming, Huaxi Botanical Garden, Institute of Botany, Chinese Academy of Sciences has also successfully introduced many rhododendrons, and has initially formed a landscape. In addition, there is Jiangxi Lushan Botanical Garden. At present, although some units in our country are building azaleas, most of them are deciduous azaleas, such as Huishan Park in Wuxi. It is far from enough to establish an evergreen rhododendron garden, which needs the attention and investment of the government and enterprises. There are rhododendrons in Chicago Botanical Garden and many botanical gardens in the United States, and there are also many rhododendrons in Britain, which are very rich in the world (see color map).
Many rhododendrons abroad are naturally arranged. Because there are many kinds of azaleas, most of them have the habit of liking the shade. In order to take care of this ecological requirement, most places with pine and cypress are chosen, which can not only achieve the shading effect all year round, but also make the mycorrhiza in the roots coexist.
Rhododendron likes humid air, but the northern part of China belongs to continental climate, so it should be sprayed frequently during the growing season, otherwise some large-leaf species will have drooping leaves and poor growth during the day. Rhododendron can withstand low temperature, but strong wind will do great harm to Rhododendron with big leaves and crisp branches. 65438-0989 When I was studying in England, I saw the damage of strong wind to azaleas in Wesleyan Botanical Garden. So we should plant windbreaks in the main wind direction of the garden.
The Rhododendron Garden shows people the charm of Rhododendron, which is of positive significance for promoting tourism, scientific research and speeding up the development and utilization of resources. Edinburgh Botanical Garden and Royal Botanical Garden, New York Botanical Garden, Arnold Arboretum, Washington Botanical Garden, Chicago Botanical Garden, Kellaway Botanical Garden, Bremen Botanical Garden, etc. There are world-famous cuckoo gardens.
Judging from the function, nature and layout of many rhododendrons at home and abroad, there are mainly two kinds: one is a demonstration rhododendron garden focusing on education and scientific research. Most of them are located in botanical gardens of plant research institutions or universities, and are generally arranged according to the evolution, classification system or origin of rhododendrons. The purpose is to make people understand the evolution, differences, resource distribution and landscape related to the origin of rhododendron. The focus is on collecting and studying the species of azaleas, not horticultural varieties. Second, sightseeing-oriented rhododendrons are mostly located in parks or scenic spots, becoming independent gardens or occupying only a part of the area. Most rhododendrons in China belong to this category. Such as Huishan Park in Wuxi, Jin Dian Park in Kunming and Heilongtan Park. The layout method is the same as gardening. First, carry out topographic transformation of overlapping mountains and water management, divide areas according to the needs of sightseeing, decorate with azaleas, and comprehensively construct landscapes with other ornamental plants to meet the requirements of tourists.