When this happens, the chives will not grow as well. The solution is to renew the patch . Dig up a portion of the patch, thin it out, and transplant it to another area of the garden. Cultural Requirements - Watering and fertilizing requirements are the same as for all members of the onion family. The plants are fairly shallow-rooted, so frequent watering is suggested, although a reasonable yield can be obtained with minimal watering.
Chives generally require little attention.
This should be done only once a year, before mid-July, to allow the bulbs to replenish their food reserves. Alternatively, if you want fresh chives, selectively cut off individual plants. This method can be practiced all season long until frost, with little risk of damage to the plants. In most areas this is not required. This is another common perennial in the onion family.