When to Plant Scallions in Nevada (2026 Guide)
Scallions, also known as green onions or bunching onions, are an incredibly versatile and productive crop to grow in your Nevada garden. With their ability to be harvested before any bulb formation, they provide fresh flavor and culinary appeal without the need for long wait times. Scallions can be planted almost anytime during the cool season, making them a favorite among local gardeners who appreciate fast-growing greens. For many areas in Nevada, the last spring frost typically occurs around February 16 for Zone 7b–8a, allowing for various planting strategies.
Most Nevada gardeners can enjoy a long growing season for scallions. For those living in warmer parts of the state, like Henderson, with a median last spring frost of February 2, the conditions are ideal for earlier planting. The distinctive climatic conditions in Nevada, including warmth and low humidity, present excellent opportunities for continuous harvests, especially with proper succession planting strategies. Expect to enjoy scallions from your garden from a first harvest as early as late June through to fall.
Considering the right timing is essential for success when growing scallions. In the colder regions like Reno, where the last spring frost can delay planting, sowing seeds might need to wait until late May, when risks of frost diminish. Regardless of your specific local climate, understanding and utilizing Nevada’s unique frost dates, such as November 27 for the first fall frost, will help you plan for a bountiful harvest while making the most of your gardening efforts.
Planting Schedule by USDA Zone in Nevada
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 7b–8a | Start February 1 – February 15, ~6–8 weeks before April 10 | Transplant outdoors from March 1 – April 10 | Direct sow from March 1 – April 15 | Harvest from June 1 – November 1 |
| Zone 8b–9a | Start January 15 – January 31, ~6–8 weeks before March 1 | Transplant outdoors from February 15 – March 15 | Direct sow from February 15 – March 25 | Harvest from June 15 – December 1 |
| Zone 5a | Start April 1 – April 15, ~6–8 weeks before May 22 | Transplant outdoors from late May – early June | Direct sow from late May – early June | Harvest from July 15 – October 15 |
Scallions Planting Windows in Nevada
- Indoor start: Aim to start scallion seeds indoors from January 15 to February 15 in warmer regions, like Henderson.
- Transplant outdoors: Transplant scallions outdoors between March 1 and April 10 in the Las Vegas area for optimal growth.
- Harvest: Expect to harvest scallions from June 1 to November 1 in the Las Vegas area, ensuring a continuous crop throughout the growing season.
Common Mistakes Growing Scallions in Nevada
- Many novice gardeners in Nevada tend to plant scallions too early and expose them to late frosts, which can damage growth. Always reference local frost dates and ensure sowing is timed correctly to avoid disappointment.
- In humid or hot summers, scallions can suffer from stress due to high temperatures common in Nevada. Proper watering and techniques like mulching can help maintain moisture and protect your crops from the heat.
- A common mistake is over-consuming bed space by planting too densely without regard for companion crops. Scallions work great alongside carrots, but careful planning is needed to avoid overcrowding even among different crop types.
- Some gardeners in Nevada confuse scallions with bulb onions and try to grow them under the same conditions. Unlike bulb onions, scallions thrive in cool weather and need different care, particularly regarding planting depth and moisture requirements.
- Ignoring Nevada's unique microclimates can lead to unsuccessful plantings. Remember, microclimates can cause varying temperature and frost patterns, so observe your local garden conditions before deciding on planting times and methods.
Frequently Asked Questions
What should I do if I live in a cooler area of Nevada?
If you reside in a cooler region like Reno, wait until late May to transplant scallions outdoors. This ensures that the risk of frost has passed, providing a safer environment for establishing your plants.
Can I still plant scallions in May?
Yes, planting scallions in May is perfectly fine, particularly in the cooler zones of Nevada. Just be aware that their growth may be slightly delayed compared to earlier spring sowings, but you can still enjoy a harvest later in the year.
How often should I water my scallions?
Watering should be done regularly, especially during Nevada's dry summers. Keep the soil consistently moist but not waterlogged, aiming for about an inch of water per week to promote healthy scallion growth.
Can scallions survive a frost?
Scallions can generally tolerate light frosts down to 28°F without severe damage. However, protecting them with row covers or mulch can extend your harvest period into the colder months effectively.
What spacing should I use when planting scallions?
For the best results, plant scallion seeds densely—around 15-20 per square foot. This method maximizes garden space and ensures you can harvest fish promptly while making room for neighboring plants.
Keep Learning
City guides in Nevada
Other crops in Nevada
Typical fall sowing window for Scallions in Nevada: September 14 – October 5.