Things You'll Need. Sink a papyrus plant's container in a pond or other water feature so that the container's top is up to 12 inches beneath the water surface, or grow the plant directly in boggy, wet soil near the margin of an outdoor pond.
Ham should not sit at room temperature any longer than 2 hours.
Leftover ham should be wrapped tightly and refrigerated as soon as possible. Do not leave the ham at room temperature for more than two hours. If it is not going to be used within four days of cooking, it should be frozen.