Itasca Lady's Slipper Farm in Bovey, Minnesota sells Lady's Slippers across the United States and will ship the plants as bare roots directly to you in the spring and fall only. In summer is on site only sales. One of the featured Lady's Slippers we sell is the Cypripedium candidum. This small white lady's-slipper flower is native to the plains of the midwestern U.S. This species needs a calcareous soil and a bit more sun than most Cyps. The plants should not be allowed to dry out during the summer. Zones 3-6.