UC Santa Cruz Arboretum and Botanic Garden

Pyongyang, North Korea

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The UC Santa Cruz Arboretum & Botanic Garden, located on the University of California Santa Cruz campus in California, USA, spans 150 acres of diverse plant collections from around the world, including rare Mediterranean, Australian, South African, and New Zealand species adapted to coastal climates, alongside redwood forests and wetlands.

It supports conservation, research, and education through themed gardens like the endangered plant collection and a hummingbird garden, attracting visitors for peaceful trails, seasonal blooms, and events. 

No such arboretum or botanic garden exists in Pyongyang, North Korea; the city instead features the Central Botanical Garden at the base of Mount Taesong, established in 1959 as a research and display site for local flora like Kimilsungia flowers and over 2,800 plant species, though access is limited for foreigners.