Garlic, Onions, and Chives
Allium species like garlic, onions, and chives don’t usually have any issues with pests. Rodents and deer tend to avoid them. Insects like thrips can be a problem, but resistant varieties CAN be found. Most of these species grow reasonably low to the ground.
So they can be an excellent way to fill in the space that has bright green foliage. And they can also aid in protecting neighboring plants by repelling starving critters.
Arugula
This tangy green plant is a popular choice for edible landscaping if you want to add a little bit of zest to your salad mixes or sandwiches and even as a topping on a pizza.
Arugula is easy to grow from seeds or plants and can be harvested using the “cut and come again” method or simply by snipping off the leaves. Either way, You’re better off harvesting arugula frequently.
If it’s left uncut, the plants can grow up to 3 feet tall, and the leaves will become more bitter and peppery in taste.