I must admit I do not have two green thumbs; however, this this is the best app I have found for our yard and garden. I really easily able to use this app while visiting the stores and mapping out where each plant, flower, and tree are need to be planted. My favorite part is how each item gives the details of water needs, sun, and the soil zones; which far less questions for my wife, and parents...
cuneo13 about Landscaper's Companion - Plant & Gardening Guide