When to Plant Scallions in Texas (2026 Guide)
Scallions, also known as green onions or bunching onions, are a fantastic crop for Texas gardeners. With their quick turnaround time of 60–70 days, they can provide fresh greens throughout much of the year. In Texas, where the growing seasons can be vastly different depending on your location, knowing when to plant scallions is essential for a bountiful harvest.
For gardeners in Zone 8b–9a, which includes regions like Alice and Angleton, the last spring frost typically occurs around February 13. This timing allows for early planting of scallions to take advantage of the lengthy growing season, which spans approximately 300 days. In contrast, gardeners in Zone 7b–8a, including Austin and Arlington, should note that the median last spring frost is March 4.
To achieve optimal growth, scallions can be sown directly every 3–4 weeks from early spring through late fall. This strategy maximizes harvest and provides continuously fresh crops. However, as any Texas gardener knows, the weather can be unpredictable, with challenges ranging from late spring frosts to hot summer temperatures affecting growth, making planning ahead crucial.
Planting Schedule by USDA Zone in Texas
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 7b–8a | Start March 4 – March 18, ~6–8 weeks before May 1 | Transplant outdoors from April 1 – April 15 | Direct sow April 1 – August 15 for continual harvest | Harvest from June 1 – November 22, with a focus on early summer |
| Zone 8b–9a | Start February 13 – February 27, ~6–8 weeks before April 10 | Transplant outdoors from March 1 – March 15 | Direct sow March 1 – September 1 for ongoing harvest | Harvest from May 1 – December 10, focusing on peak early summer growth |
| Zone 7a | Start March 20 – April 3, ~6–8 weeks before May 1 | Transplant outdoors from April 15 – May 1 | Direct sow April 15 – July 15 for successful harvest | Harvest from June 15 – November 14, optimal in mid-summer |
Scallions Planting Windows in Texas
- Indoor start: For Zone 7b–8a, start indoors between March 4 and March 18 to ensure healthy seedlings.
- Transplant outdoors: In Zone 8b–9a, the ideal window for transplanting outdoors is from March 1 to March 15.
- Harvest: The harvest window for scallions in Zone 7b–8a generally runs from June 1 to November 22, allowing for steady picking.
Common Mistakes Growing Scallions in Texas
- One common mistake Texas gardeners make is not accounting for sudden late spring frosts, especially in cooler areas. Scallions require protection during unexpected cold snaps that can occur after March 20 in some zones.
- Overcrowding scallions can lead to thin, leggy plants. In Texas’s fertile soil, it's tempting to plant densely, but allowing adequate space ensures healthier growth and better harvests throughout the season.
- Many gardeners mistakenly believe scallions can’t be grown in summer. While they thrive in cool conditions, they can tolerate Texas’s heat if given enough water and shade, making late spring and early summer sowing feasible.
- Improper watering is a frequent blunder. Texas’s dry spells can lead to uneven moisture levels, negatively impacting scallion growth. Consistent watering is vital, especially during peak heat periods.
- Planting scallions in poor soil is another error. Texas has various soil types, with many areas having clay or alkaline soil that doesn’t drain well. Improving soil with compost or organic matter can provide scallions the nutrients they need.
Frequently Asked Questions
What if I'm in a cold pocket of Texas?
In colder areas, monitor your frost dates closely. You might want to start your scallions indoors to avoid frost damage. If you do plant outside, consider covering them if cold snaps are forecast.
Can I still plant scallions in May?
While May is a little late for starting scallions in most regions, you can still plant them. They will do best if sown early in the month and should be harvested before the summer heat peaks.
How far apart should I plant scallions?
Plant scallions about 2–3 inches apart to allow for ample growth without overcrowding. This spacing ensures that you can harvest without competing for nutrients, especially in fertile Texas soil.
Can scallions survive light frost?
Yes, scallions can tolerate light frost down to about 28°F. If temperatures dip further, protect them with row cover to shield against damage and provide an extended harvest into late fall.
What are the best companion plants for scallions?
Great companions for scallions include carrots, beets, and slower-growing transplants. Scallions can be harvested first, allowing the later crops to flourish without competing for space in your Texas garden.
Keep Learning
City guides in Texas
Other crops in Texas
Typical fall sowing window for Scallions in Texas: September 3 – September 24.