Bulbous perennial of the Iridaceae family, 'Vanguard' is a hybrid obtained by crossing Crocus vernus and Crocus tommasinianus, developed in the Dutch horticultural tradition. It is among the earliest spring crocuses of the large crocus group, often blooming from late February or early March, well before most Crocus vernus cultivars.
The flowers are of intermediate size, more graceful than the classic large Dutch crocuses. The tepals are a soft lilac to lavender violet, noticeably paler and almost pearly on the outer face, giving them a luminous appearance as if lit from within when still in closed buds. At full bloom, the more pronounced violet streaks on a light lilac background become visible, and the bright orange anthers form a warm and contrasting center. This transition from pearly bud to colorful open flower is one of the most characteristic visual effects of this cultivar.
The foliage is narrow, dark green, with the typical silver median line of the vernus group crocuses. In cultivation, it naturalizes easily in well-drained soil and full sun, suitable for both rock gardens and spring lawns.