Onions

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Characteristics

Species: spp.

Plant Height: 12-18 in.

Spread: 10-12 in.

Evergreen: No

Plant Form: Sprawling

Summer Foliage Color: Green

Minimum Sunlight: Full Sun

Maximum Sunlight: Full Sun

Ornamental Features

Onions can be grown from seed, small bulbs called sets, or from transplants called slips.

Landscape Attributes

Yellow, white, and red/purple onions grow very well in Texas home gardens. Onions seeded in October/December or transplanted in January/February should produce bulbs in May/July. Onions grow best when the garden soil is fertilized correctly. Spread 2 to 3 pounds of a fertilizer such as 10-10-10 over a 100-square-feet of garden area. Measure and spread the fertilizer; then mix it with the top 3 to 4 inches of soil. Gardeners should be aware of the following characteristic(s) that may warrant special consideration; Insects Disease Green onions may be eaten fresh or chopped and added to salads. Bulb onions may be sliced and used on sandwiches or dipped in batter and fried as onion rings. Although onions are a source of vitamins A and C, they are used mostly as a flavoring in other food dishes.

Planting & Growing

Onions seeded in October/December or transplanted in January/February should produce bulbs in May/July. If used as green onions, they may be picked from the time they are pencil size until they begin to form bulbs. Onions grow best in full sunlight and well-drained soils. Watering once a week usually is enough in the spring. But you may need to water more often during dry, windy weather. Water onions slowly and deeply to help grow strong, healthy roots. Work the garden soil only when it is dry enough not to stick to garden tools. Before seeding or transplanting, work the soil 8 to 10 inches deep. Remove all rocks and trash from the soil; then break up the remaining clods and rake the soil smooth.