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.
How long can cooked ribs sit out at room temperature before they are bad. Answer. You should not leave cooked ribs sit out at room temperature for more than 5 - 7 hours, since bacteria starts to grow on them and can make people sick. data-config-site-section=chacha>.