Botanical Gardens and Arboreta are scientific institutions that acquire and maintain living collections of plants for the purposes of research and education. They perform the same function for plants as Zoos and Aquariums do for animals.

Typically, botanical gardens and arboreta must have a full-time scientific staff, an herbarium and library, and a catalogued collection of thousands of plants. Although botanical gardens and arboreta may also have a public viewing area, in which case they may be listed as well under Public Gardens, it is the presence of a viable research faculty using an herbarium or herbaria which distinguishes botanical gardens and arboreta from public gardens. This tends to make botanical gardens and arboreta larger in size and more dedicated to preservation of plant taxa than Public Gardens, however size or reputation are not the determining factors.

Botanical Gardens and Arboreta in Africa.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants
Botanical Gardens and Arboreta in Asia.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants
Botanical Gardens and Arboreta in Central America and the Caribbean.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants
Botanical Gardens and Arboreta in Europe, excluding the British Isles.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants
Botanical Gardens and Arboreta in Australia, New Zealand, Polynesia.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants
Botanical Gardens and Arboreta in South America.
Gardens with no scientific value should not be submitted here. Gardens which are purely for aesthetics should be submitted to Home/Gardening/Gardens Gardens which are tied to commercial nurseries should be listed under Shopping/Home and Garden/Plants