Which Botanic Garden Has The World’s Largest Collection Of Plants?

Which Botanic Garden Has The World’s Largest Collection Of Plants? Kew Gardens: Royal Botanic Gardens breaks record for largest plant collection. Image caption, The Royal Botanic Gardens (RBG) at Kew houses at least 16,900 unique plant species. Kew Gardens has set a new record for the largest living plant collection at a single site, according