I put this together and decided to share it. Press Tab+P if you have $15, 000+ to by the current property as money producing bushiness. Script wise it will create an asset where you are standing, so you can buy a tree or an airport for 15k (use your imagination).

Minus a camera angle it should have all the regular flair of buying a property including the property budget being updated accordingly in the stats. Remember to stand exactly where you wish for the asset to be, once the black text box shows up, it should be safe to move around with out messing up where it will be created. This can be done over and over. This is an alternative to 'fixed' properties with a green house. Each will produce either $4000 or $2000, the game seems to default to $2000 for the older ones when a new property is bought.