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.
To practice food safety, quickly refrigerate perishable foods, such as meat, poultry, fish, dairy and eggs â don't let them sit more than two hours at typical room temperature or more than one hour at temperatures above 90 F (32 C).