As for the plant list, I am not sure. I can tell you there are not enough, or all the plants you would like to have. It is fully customizable, so you can add photos & information for any plant you can get the photo & information for from other sources. Horticopia is compatible and has 8669 plants with data. With Horticopia you are able to add portfolios to increase the number of pictures, but not data as of this time. With Pro Landscape are you looking for the 3D images for plants or the 2D rendering. With the 3D the exact plant is not as important as a photo that resembles what you are trying to accomplish. If you are using it with the proposal mode you must take into account for any changes or substitutions you have made. With the plan mode you can change the text in a callout, so that doesn't present an issue. If you are thinking about buying it, I'd be happy to share my thoughts with you in a PM or email.