Answer:
Though I am only two words I have thousands of letters in me
I am a house with two occupants sometimes one rarely three. Break the walls eat the boarders then throw away me.
I help boats park
What can you catch but not throw?
I am flora not fauna. I am foliage not trees. I am shrubbery not grass.
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?