That might be, if it will not spread to unwanted areas, a good place for Creeping Charlie.
Sharon put some as ground cover in a raised garden I made for her for several years and it looked and smelled good and never was a real problem for going where it was not wanted.
Even though the garden was low enough it went over the edge and through the cracks between the blocks on occasion.
I have used Oxalis in my rose garden till I found out it is a plant that can carry some diseases without suffering from them.
It never hurt the roses but did affect the ground cherries I had in the rose garden for a time to the point I quit having ground cherries.
The sad thing is the disease came from a ground cherry plant I bought at green house, not the oxalis, as they were disease free till I bought that one. The oxalis just helped spread it as they were the type of oxalis that spreads itself.
