plantain lily (hosta) 'gold standard' forming dense, overlapping mound of wide-oval, slightly cupped

gold standard hosta sieboldiana medium bicolor botanical botany bright change close closeup cultivar dense details flora foliage garden gardening geometrical golden green hostaceae irregular large leaf leaves lilies macro margines margins nature ornamental oval perennial plant plantain lily shady summer sunlight wide woodland yellow 'gold standard' forming overlapping mound wide-oval cupped centers