This collection of Autumn planting crocus contains: 10 bulbs of Crocus Cartwrightianus: Lilac-white flowers with darker veins. Thought to be the wild precursor of the domestic Saffron Crocus. RHS Award of Garden Merit winner. Bulb size 7/8cm. Photo courtesy of Ian Young www.srgc.org.uk 10 bulbs of Crocus Sternbergia Lutea: Produces beautiful crocus-like blooms. Sometimes referred to as the winter daffodil due to its golden yellow flowers. Bulb size 10/12cm.. Pack of 20 bulbs (10 of each variety).... .