Hello, came looking for Ficus being grown in Epi form but it seems no. Lynn here these trees grow on trees, buildings, you name it and they grow on them. As to what happens to the tree on which the seed landed, no it is not parasitic but it smothers and kills the tree once the roots have reached the soil. Cheryl, it would be best if you eradicate that paper mulberry. Highly invasive and once established, impossible to kill. If a root enters any crack in a structure, that will be the end. Any way humans here normally don't eat the fruit of paper mulberry only the birds.
Regards,
Arif.