Planting Onions in Texas


Onions In TexasSource:

Onions are a popular vegetable that can be grown easily in most parts of Texas. However, planting onions in Texas requires some planning and preparation due to the unique climate and soil conditions. In this article, we will discuss everything you need to know about planting onions in Texas, from selecting the right variety to harvesting and storing the onions.

Choosing the Right Onion Variety

Types Of OnionsSource:

The first step in planting onions in Texas is choosing the right variety. There are three main types of onions: short-day, intermediate-day, and long-day. In Texas, the best variety to plant is the short-day onion, which requires 10-12 hours of daylight to bulb. Some popular short-day onion varieties that grow well in Texas include:

  • Texas Legend
  • 1015Y
  • Red Creole

It is important to note that onions are biennial plants, which means they grow leaves the first year and bulb the second year. However, in Texas, onions are typically grown as annuals, which means they are planted and harvested within one growing season.

Preparing the Soil

Soil Preparation For OnionsSource:

Before planting onions in Texas, it is important to prepare the soil properly. Onions prefer well-draining soil with a pH between 6.0 and 7.0. The soil should be loosened to a depth of 8-10 inches and amended with organic matter, such as compost or aged manure, to improve soil fertility and structure.

It is also important to add fertilizer before planting onions. A balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium is recommended. Apply the fertilizer at a rate of 2-3 pounds per 100 square feet of garden space.

Planting Onions

Planting OnionsSource:

Onions can be planted in Texas in the fall or early spring. For fall planting, onions should be planted in late September or early October. For spring planting, onions should be planted in February or March, depending on the climate zone.

To plant onions, make furrows in the prepared soil about 1 inch deep and 4-6 inches apart. Place the onion sets, which are small bulbs, in the furrows with the pointed end facing up. Space the onion sets about 4-6 inches apart. Cover the furrows with soil and water well.

Care and Maintenance

Onion CareSource:

Onions require regular care and maintenance to grow well in Texas. They need to be watered regularly, especially during dry periods. However, overwatering can cause the onions to rot or develop fungal diseases. It is important to maintain consistent moisture in the soil without overwatering.

Weeds should be kept under control around the onion plants, as they can compete for nutrients and water. Mulching around the onion plants can help suppress weeds and conserve soil moisture.

Onions do not require much fertilizer after planting, but a side dressing of nitrogen fertilizer can be applied when the plants are about 6 inches tall. Apply the fertilizer at a rate of 1/4 pound per 10 square feet of garden space.

Harvesting Onions

Harvesting OnionsSource:

Onions are ready to harvest when the tops start to yellow and fall over. This usually occurs in late spring or early summer, depending on the planting time. Carefully dig up the onions with a garden fork, being careful not to damage the bulbs.

After harvesting, onions should be cured before storing. Curing involves drying the onions in a warm, dry location for several weeks until the tops are completely dry and the outer skin is papery. Once cured, the onions can be stored in a cool, dry place for several months.

Frequently Asked Questions

1. Can onions be grown in containers?

Yes, onions can be grown in containers as long as the container is at least 6 inches deep and has good drainage. Use a well-draining potting mix and plant the onion sets about 4-6 inches apart. Water regularly and fertilize as needed.

2. How do I know when to plant onions in Texas?

The best time to plant onions in Texas is in the fall or early spring, depending on the climate zone. For fall planting, onions should be planted in late September or early October. For spring planting, onions should be planted in February or March.

3. Can I plant onions with other vegetables?

Yes, onions can be planted with other vegetables in a vegetable garden. They pair well with tomatoes, peppers, and herbs. However, onions should not be planted with beans or peas, as they can inhibit the growth of the onions.

4. How do I prevent onion bulbs from rotting?

To prevent onion bulbs from rotting, it is important to maintain consistent moisture in the soil without overwatering. Proper drainage is also important to prevent water from accumulating around the bulbs. Mulching around the onion plants can help prevent moisture loss and suppress weeds.

5. What pests and diseases should I watch out for when growing onions in Texas?

Onions can be affected by several pests and diseases, including thrips, onion maggots, and fungal diseases such as onion downy mildew and onion smut. To prevent these problems, it is important to practice good sanitation and crop rotation. Insecticidal soap and neem oil can also be used to control pests.


Planting onions in Texas can be a rewarding experience, but it requires some planning and preparation. By choosing the right variety, preparing the soil properly, and providing regular care and maintenance, you can grow healthy and flavorful onions in your garden. Remember to harvest and cure the onions properly before storing, and watch out for pests and diseases that can affect the crop. With these tips, you can enjoy a bountiful onion harvest in Texas.

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