It's a bit amusing to have a wannaGROW on the topic of chives, as most people have such voracious chive plants that they don't want them to grow! I've lucked out with, yet another, discovery in our garden... a lovely and small and reasonable little chive bush.
I read on one garden website that "chives do not thrive on neglect," which I laughed at because I really haven't given my chives much TLC. Partially because I don't want them to spread like crazy but partially because I am still figuring out what I need to do with all of these plants in my garden.
CHIVES TIPS
I've learned that you should harvest the chives by cutting them about two inches above the soil, using scissors, to encourage regrowth. So, unlike the rhubarb where you should absolutely NOT cut, here it is okay to cut. Harvest from the outside edges to the inside. Remove the flowers, as they appear, to keep the plant vegetative and producing.