What: Eranthis hyemalis, commonly known as winter aconite, is an enchanting member of the buttercup family with bright yellow flowers in mid-winter. Indeed, the cup-shaped flowers sit atop three leaf-like bracts that form a collar, reminding one of a renaissance cuff worn around the neck by 16th-century Europeans. Plant these en masse for a spectacular show that will certainly brighten those gray days of winter.
Where: Winter aconite will grow and bloom best if sited in full sun during the time of bloom; however, some light shade is not a total hindrance.
Size: The upright bulb with deciduous foilage grows to be 5 inches tall and 2 inches wide when mature.
Care: The soil should be well-drained, but consistently moist throughout the year.
— Richie Steffen, Great Plant Picks