You can spread compost on top of what you've got there and then if you want to prettify it further some bark or mulch on top of that. As it rots and gets watered-in it benefits the surrounding plants. From experience of getting it wrong; I know that unless you know that your flowers need horse manure I'd avoid it, as it can sometimes do more harm than good. https://www.gardenmyths.com/compost-is-it-poisoning-your-garden/
ha. I'd only be using my ex-kitchen/garden sourced compost, no risk of too much horse. I haven't moved the current compost bin in 4 years, there' s a localised very well nutrified patch...
You can spread compost on top of what you've got there and then if you want to prettify it further some bark or mulch on top of that. As it rots and gets watered-in it benefits the surrounding plants. From experience of getting it wrong; I know that unless you know that your flowers need horse manure I'd avoid it, as it can sometimes do more harm than good.
https://www.gardenmyths.com/compost-is-it-poisoning-your-garden/