Onion Chives

Onion chives prefer well-draining, fertile soil with a pH between 6.0 and 7.0. They can tolerate a range of soil types and partial shade but prefer full sun. Before planting, amend the soil with compost and well-rotted manure. Plant the seeds or seedlings in the spring, spacing them 6-12 inches apart and 1/4-1/2 inch deep. Water regularly to keep the soil moist but not waterlogged. Fertilize with a balanced fertilizer every 4-6 weeks during the growing season. Onion chives can also be grown in containers with well-draining soil and placed in a sunny location.

Sow indoors 6-8 weeks before the last frost. Plant seeds 1/4" deep in pre-moistened seed starting mix. Under ideal conditions, germination will occur in 7-14 days. 

Set transplants outdoors anytime in mid-spring through early summer. Plants should be spaced 1ft in all directions. Chives prefer full sun, but will tolerate some shade.

Insect Pests

Diseases & Other Problems

To harvest onion chives, wait until they are at least 6 inches tall, then snip off the leaves at the base with a sharp pair of scissors or pruning shears. Leave at least an inch of growth at the base to encourage new growth. To store onion chives, wrap them in damp paper towels and place them in a plastic bag in the refrigerator for up to a week. Alternatively, you can chop the leaves and freeze them in ice cube trays with water or oil for later use in cooking. Onion chives can also be dried by hanging them in bunches upside down in a dry, well-ventilated area until they are brittle, then storing in an airtight container.

CONSIDERATIONS:

Onion chives are outbreeding plants and therefore cross-pollination is theoretically possible, however few distinct varieties exist so isolation is usually not needed. Garlic chives will not cross with garlic chives or any other allium species.

HARVESTING SEED:

After flowering, allow seed heads to develop and turn brown. Onion chives are known for shattering easily, so keep an eye on the heads and harvest once a few of the pods have begun to break open. Place in a paper bag and allow to completely dry. Rub heads to release the seeds, winnow, and store in a cool, dry place in an airtight container.

SEED LONGETIVITY:

Onion chive seeds will remain viable for two years when properly stored.