Onion Germination Information

Onion Hyssop Seed Germination How to Sow Onion:

  • Best sown outdoors in situ after all danger of frost is past in the spring and the soil is warm
  • In Zones 8 and warmer, seeds can be sown in the fall
  • Seeds can also be sown indoors at a temperature of 68-70°
  • Indoors and out, sow at a depth of 4 times the size of the seeds and expect germination in 10 days
  • When sowing seed outdoors, we recommend a maximum planting depth of 4X the width of the seed

How to Grow Onion:
Transplanting: Transplant when seedlings are about the girth of a pencil and as soon as the soil can be worked in the spring

Spacing: Thin or space 4 inches apart in rows spaced 12-18 inches apart

Soil: Site in full sun in a light, fertile, deeply tilled, rich soil

Additional Care: Water and feed regularly. The thinned seedlings can be used as a flavoring

Appearance and Use:

This 20 inch tall plant is grown for its edible, enlarged, bulbous, underground portion which may be white, red, or yellow in color. The narrow foliage is light green and is very strong smelling. Harvest the bulbs when the leaves begin to fall over and the bulbs are easily pulled from the ground. If there is resistance, the roots are still actively growing and the onion should not be harvested. Hasten maturity by removing the tops and look to be able to harvest the bulbs in a week. Eat them fresh or dry them for storage


About Onion:
Botanical name: Allium cepa
Pronunciation:  al’e-um se’på
Lifecycle:  Perennial
Origination: Liliaceae; nativity unknown