A new Goldenrod found under Décor / Plants, costs 0. Each plant consists of 3 bunches. For CAW, found under Metadata / Game Objects / Environment in CAW. You need Ambitions or a later pack and to place the package in both the "Electronic Arts / The Sims3 / Mods / Packages" directory and in the "Program Files(x86) / Electronic Arts / The Sims 3 Create a World Tool / Packages" directory for the Goldenrod to show in your game. There is an earlier post explaining how to install items in CAW.
Importing packages into CAW
Placed in the game