White Lisbon' is a green or spring onion, and sometimes referred to as a scallion or bunching onion. A popular variety since the 1700s because it produces dependably in widely varying conditions. It thrives in a wide range of soils, is heat and cold tolerant, and can be sown successively throughout the season. For the finest quality, pencil-thin onions, sow seed densely and do not thin seedlings.

Days to Maturity: 60 days

Family: Alliaceae

Type: Bunching/Scallion Onion (Learn more)

Native: Exists only in cultivation

Hardiness: Biennial grown as an annual

Exposure: Full sun

Plant Dimensions: 12" to 18" tops

Variety Info: Mild, juicy, sweet, thin whites, with tender, edible, green tops (foliage), harvested early before it has the chance to form a bulb. 'White Lisbon' is a spring onion, generally used as a scallion-type onion. It has been in gardens since the 1700s.

Attributes: Frost Tolerant

When to Sow Outside: 4 to 6 weeks before your average last frost date or as soon as the soil temperature reaches 45°F, ideally 60°–85°F, and every 2 to 4 weeks recommended for continuous production. In Mild Climates, sow in fall for spring harvest.

When to Start Inside: 8 to 10 weeks before your average last frost date; transplant 4 to 6 weeks before your average last frost date.

Days to Emerge: 10–15 days

Seed Depth: ¼"

Seed Spacing: ½"

Row Spacing: 12"

Thinning: Not necessary unless thicker whites are desired