Pine cones in water?

Does anyone know how long pine cones will last if submerged in water? I am going to make a center piece for a wedding and I want to use pine cones in the bottom of the vase.


Thanks

Pine cones in water?
pine cones will last indefinitely in water.


BUT- they will close up and won't look a thing like they do when they are dry.


AND- they can discolor the water....brown.


SO- you may want to rethink this.
Reply:probably longer than the marriage itself!! for sure longer than the wedding so go for it...
Reply:I would just experiment now by submerging one yourself and see how long it lasts.

miriam