Leucanthemum paludosum ( Paludosum Daisy )
Often sold as Chrysanthemum paludosum . Coarse , leathery , gray - commons leaves 5 inches long or shorter . Yellowish - white undivided prime ( 3/4 to 1/14 column inch across ) and deeper jaundiced centers start blooming in May , with large show around former June , then continue sporadically until freeze . Tolerant of many land , but do require water in red-hot , sunny climate . Divide clumps every 2 years or prove plants from seeded player ....