Pests are always a problem.
Build nanobots that can crawl your garden, detect the pests on your trees and plants and destroy them one by one.
You have a lovely garden, but not as nice as you’ed like.
An app that when you take a photo of your garden with, will analyze and show you automatic enhancements based on things you already have in it – like a lusher bed of one of your flowers.
It’s beautiful and inspiring.
Allow people to upload photos of their (and others’) balcony gardens. Arrange in multiple ways, by color, geography, season, etc.
No need to guess if you need to water it or if it needs some additives etc.
Have a small gadget that you can stick in your pot or garden near the plant. You program it with the kind of plant it is monitoring and using the built-in sensors it will continuously monitor the soil and show you on a tiny display what you need to do.
You have a small beginning of a garden in your backyard or balcony. You would like to have some advice quickly and easily on how to develop it next.
A smartphone app. You take a photo within the app of your existing garden. The app will identify all the current plants (with your assistance if needed), and will show you in augmented reality a few options of what it can look like with some development. Yu decide which plan is more to your liking and get a list of what to buy, plant, where, and how to take care of it.