key growing information

How to Grow Cipollini Onions From Seed

How to grow cipollini and mini onions from seed: soil and sun, latitude, sowing in bands, seeding rates, and harvesting bunches.
By Hensley’s Seed Co.

Cipollini, Mini & Specialty Onions - Key Growing Information

A freshly harvested bunch of cipollini onions of the classic Italian specialty type.

SCIENTIFIC NAME:

Allium cepa

CULTURE:

Like all onions, mini onions want full sun, steady moisture and fertile soil with a pH of 6.2–6.8. Keep them weeded.

DAYS TO MATURITY:

Counted from direct sowing.
ADAPTATION: The farther north you grow mini onions, the smaller and earlier they bulb. Pearl and cipollini types suit latitudes of 40° and above; at lower latitudes they grow into small to medium onions.DIRECT SEEDING: In early spring, sow about 1/2" apart in bands 2–4" wide or in single rows 4" apart, and cover 1/4–1/2" deep. No thinning needed.

AVG. DIRECT SEEDING RATE:

At 96 seeds per foot in 4"-wide bands with rows 12" apart: 5,000 seeds sow about 50', 1 oz. about 80', 13 oz. about 1,000'; plan on roughly 34 lb. per acre.

HARVEST:

Pull bunches whenever you need them. Skins don't form until 2–3 months into the season, so young mini onions are easy to clean and use.

SIZED SEEDS:

Seed is not sized.
SEEDS/LB.: 113,700–134,300 (average 123,300).

PACKET:

1,000 seeds per packet unless noted.

Source and attribution

Migrated library resource. Original named people, organizations, research, and factual provenance are retained.