Most perennials and shrubs come in 1 or 3-gallon pots, but this is not indicative of their final sizes. If a plant will eventually spread to 5 feet wide, it should not be planted closer than 2.5 ft to a wall, fence or another plant. Drag and drop should restrict plant placement to areas with sufficient room. If you offer a 3D view it should show several years growth so the homeowner can visualize the outcome. The homeowner needs to also see that initially the garden will look sparse. I have always recommended the use of annuals to fill in between perennials and shrubs during early years of growth, and I think this feature is worth adding.

Another problem is plants grow at different rates. Some plants may grow to their expected mature size in 2 years while others take 10 years or longer. This is a possible problem with showing a 3D view.

There is also the use of sequential growth. For instance, spring bulbs can be interplanted with later emerging plants that hide fading bulb leaves, for instance Geranium macrorrhizum. I realize this may be too many layers of gardening for most people to grasp. I can't begin to understand how one would program this.

This is great feedback. Thank you very much. No plans to offer a 3D view as there are apps out there that already do that.

Would you see yourself using this app and if so would you be interested in trying out the prototype when ready?