Jack Straw
I look nothing like him!
I want to plant something all around the edge of the 10" square, not a hedge!
Minimal effort.
Not lavender.
Excellent ground coverage
But not lavender.
About knee height.
I said NOT lavender.
Attractive to wildlife.
Lavender! F##k off
Something that will give this kind of effect around a poppy (and other stuff) patch.
View attachment 150253
Just not lavender.
As sugested by Cheshire Cat above, Rosemary is the nearest thing you'll get to Lavender. If you go for this, you might wish to avoid the upright or the low spreading ones?
Small plants will grow quite quickly. I would space them at 18" apart.