Agree, but got the impression Nik_a is just starting out and needs a method to ID the plants in the ground and for when they go dormant so they can be divided and moved. Unless they are in straight rows, I'd think describing their exact location in a free-form bed would be difficult in a database.
I'm curious about how other people keep track of everything, too. I just looked at your plant list to get an idea (don't bother looking for mine, don't have one). Lots of plants! In your shade garden you've got many hostas. Say someone visits and casually asks about a particular hosta, how do you know what it is without checking your online database? I know most species or at least genus of my plants, but can't always remember cultivars/varieties, especially if I plant several of one species.
And if you tell me you know the full ID of every plant you own I may never talk to you again
