The picture is the mother plant showing the flowers, not for sale.
The gorgeous Epiphyllum (White) That will produce beautiful flowers ( about 5" wide ) like that shown. It goes by different names: Epiphyllum or Orchid Catus.
In our experience, this plant is very easy to care for. Simply dig a hole about 2" to 3", insert cutting side in and cover back up with soil. Keep the leaf about 5" above the soil and add water. Keep the plant in either partial or indirect sunlight. It can be grown in pot, or as we prefer, in a hanging basket with a well-draining soil blend.