balloon flower n fragrant puffed-up white to reddish-pink flowers in long narrow clusters on erect stems; Arizona to New Mexico and Utah Synonym(s) scented penstemon Penstemon palmeri
News & Articles balloon flower Garden Tip: Platycodon grandiflorus Kids love Platycodon grandiflorus, because the flower buds puff up into balloons before bursting open to beautiful, delicate blooms. Hence, the common name of balloon flower. July 20, 2013 - Athens Banner-Herald