One of the easiest flowering bulbs to grow, Colchicum belongs to a small group of fall blooming bulbs and is a wonderful addition to your autumn garden. Colchicum are bulb-like corms that need to be planted as soon as you get them. Pick a site that receives full sun to partial shade and prep your soil with Sheep, Peat and Compost. Colchicum bloom quickly, usually within 3-4 weeks of planting. Remove the flowers once they have faded. Come spring, the bulb will send up leaves, but won’t bloom again until fall. It's important to leave this foliage intact until it has faded. This is what replenishes the bulb so it will bloom again around September.