QR encoded gardening

The last few weeks of gardening have shown me new sources of inspiration including initiation of gardening classes for 3 & 4 yr olds "KinderGardening" and the book club asynchronous reading different donated books and discussing online. Tonight I ran across the missing link to bring the garden collection online and allow read-aloud of labels literally hardlinking through QR code "Quick Response" 2d reader and generator.
Now for a taxonomy and a method for notifying the blind user that a label or bulletin board exists so they can allow their phone to access it.
I can tie a GIS to physical place this way.