Daily Facts, Science, Interesting, Records, Random FactsCuriousOneJanuary 28, 2015bloom, Arnoldii, Wide, foot, Worlds, Single, Facts, Fact, Largest, pounds, Weight, Verified, Flower, staycurious, OverComment R. arnoldii - The worlds largest single flower bloom, over 3ft wide and 15lb weight Daily Facts, Science, Interesting, Records, Random FactsCuriousOneJanuary 28, 2015bloom, Arnoldii, Wide, foot, Worlds, Single, Facts, Fact, Largest, pounds, Weight, Verified, Flower, staycurious, OverComment