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.
A Melissa Joy Dobbins , Nutrition & Dietetics, answered on behalf of Academy of Nutrition and Dietetics. Follow the 2-hour rule: Don't let perishable food sit out at room temperature for more than 2 hours. If the temperature is above 90 degrees, limit that time to only one hour. For more food safety tips visit www.homefoodsaftey.org.