Plants for edging out grass growth

Zone 6B – morning/early afternoon sun, afternoon shade

I am building a fence around my raised bed area to protect it from the bunnies – and I am trying to plan out the look.

Right now I am thinking Irish moss between the stepping stones (or just small stones)

But I want to make a plant barrier around the very edge to block the grass from my lawn from creeping in.

I’m thinking of maybe planting lavender and chives around the edge because I read that they create a barrier from the grass growing in.

Does this sound like it will work? Ideas? Issues? Tips?

I’m new to all this and just trying to learn and want to do what’s best