Hey kakedynasty, I'm not sure if this is an oversight on our part but you might be able to use air to help your plants grow (we're actually probably gonna take this combination out in the next cause it's a little unintuitive, but we'll be adding in many more alternatives). Other than that, think of how you might break down those base elements into soil to grow your plants in :)
If you downloaded the app before last night, you can download the latest version and update, and it'll keep all your progress!