Once the bottom level of the container is filled completely, you are ready for another brick.
Again, I imprint the brick with the edges of the container and cut to fit.
Fit the brick in snugly so it doesn't move.
You need a lot of foam to support a great deal of flowers that make up this large urn floral.
The brick of foam must be higher than the sides of the container and urn, so flowers and greenery can be inserted from the sides.
Once your foam is all blocked in, add water to the foam, making sure it is well saturated.