Basics

Ease of Growing
Moderate
Grown as
Biennial
Days to Maturity
60 (Spring/Summer), 60 (Fall/Winter)
Growing Habit
-
Hardiness
Hardy

Scallions are tolerant of frost but will grow best when temperatures are 65-80 degrees F.

Crops
Spring Transplant, Spring, Fall Transplant, Fall
Growing Season
Short, Long
Cultivar Type
-
Growing Conditions
Cold, Cool, Warm

Like all onions, scallions are shallow-rooted, and so need the soil at and near the surface kept moist (they can't go down deep for water), but they easily "drown" if the soil gets waterlogged, which is why you don't want a heavy clay soil. Plant scallions throughout the spring and again in mid to late summer for a fall harvest. Grow in full sun.

Outdoor Growing Temp
55°F - 80°F
Min Outdoor Soil Temp
50°F

Onion seed takes a month to germinate at 40 degrees, but only 2 weeks at 50 degrees, so you don't necessarily lose much time by waiting until the soil has warmed up a little.

Start Indoors
Yes
Start Outdoors
Yes
Light
Water
Moderate

Onions are quite drought tolerant, but a lack of water makes the bulb smaller and more pungent. For best flavor and largest bulbs you must keep the soil moist at all times, so there is no interruption in growth.

Feeder
Light

Low nitrogen. Moderate potassium. Moderate phosphorous.

Onions don't need a lot of nitrogen, but they do like potassium and phosphorus.

Suitability
Tolerates light frost
Small Gardens?
Yes
Containers?
Yes

Scallions are perfect for growing in a container, since they don't take up much room. Just make sure they have good drainage and loose soil.

Attracts beneficial insects?
No
Color
White & Red
Fruit Size
-0.5"
Plant Height
10.0-12.0"
Plant Diameter
1.0-2.0"
Hardiness Zone
3-10
Disease Resistance
Taste Profile

Aromatic sweet zing.