If you are one of the lucky ones who live in an area that can have Chickens, then you will love this.
Each season different things start popping up in the garden from prior plantings. Whether they are from seeds that weren't planted at the right time, not planted correctly or if you collect seeds (like I do), the seeds that fell before collection.
I carefully remove the plants from the garden to allow room for the plants I really wanted to grow... and plant them inside the Chicken Area (just like planting in a new bed) dig a hole and plant them and water them in. Before you finish planting the ladies will be pecking at them... It's a good thing... They love it and it's good for them. Free Food... easy right... that's what I thought.

As they eat all the greens, the roots will still be alive and will produce more leaves for them to eat..
Give it a try and... keep in mind... it's clean, organic and free food... Happy Planting...