Crocus bulbs enjoy cool position with only half day sun. Keep soil moist but still well drained. Generally bulbs do not like wet conditions, especially when dormant. Crocus bulbs can be left in the ground undisturbed for years. If you want lift the bulbs, wait until the foliage has died down. When you have the the bulbs removed, clean off all the excess dirt and store in a dry & cool area out of sun light. Crocus are normally grown in areas with cool to cold winters. If you want to grow them in an area with mild winters, plant the bulbs 2 times the recommended depth.