| sound like queen palms, considered to be an environmental weed as their seeds germinate readily when spread around the bush by fruit bats. most likley not going to be hugely successfull growing plants underneath them as you have noted they have a very strong root system. as the palms aren't realy doing that much maybe you should consider their removal and then plant your other food trees which in turn will give "vertical accent" to your garden. len |
Here is a link that might be useful: len's garden page