Growing spinach in Nevada is a rewarding endeavor, thanks to the state's varied climate zones. Depending on where you reside, understanding your frost dates will maximize spinach's vigorous growing season. For cities like Reno, the median last spring frost date is as late as May 22, providing a narrow window for planting. In contrast, Las Vegas farmers benefit from an early last frost date of February 16, allowing for ample planting opportunities.
Spinach, a cool-season green, is known for its rapid growth, thriving in temperatures between 35–75°F. In Nevada's warmer zones, such as Henderson and Las Vegas, gardeners can enjoy nearly year-round cultivation of this nutritious vegetable. However, successful spinach gardening demands timely planting and careful management to avoid bolting, especially as temperatures start to rise in late spring and early summer.
When planning your spinach crop, it’s essential to understand that planting at the right time can yield a continuous harvest. Spinach can be direct-sown into the garden or started indoors, depending on your local conditions. By fall, you can even sow spinach in mid-September for a winter harvest, utilizing techniques such as row covers to protect it from colder temperatures.
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 7b–8a | Start January 10 – January 25, ~6–8 weeks before February 16 | Transplant outdoors starting February 17 – March 15 | Direct sow from February 17 – April 1 | Harvest from April 1 – June 15 |
| Zone 8b–9a | Start December 20 – January 5, ~6–8 weeks before February 2 | Transplant outdoors starting February 3 – February 20 | Direct sow from February 3 – March 10 | Harvest from March 15 – June 30 |
| Zone 5a | Start March 25 – April 1, ~6–8 weeks before May 22 | Transplant outdoors starting May 23 – June 10 | Direct sow from May 23 – June 15 | Harvest from June 15 – September 15 |
If you live in colder areas like parts of Reno or Carson City, plant later and keep an eye on local frost forecasts to avoid planting too early.
Depending on your hardiness zone, planting spinach in May is possible, but you risk high temperatures causing bolting. It's better to aim for earlier planting for a longer harvesting period.
Use row covers or fabric to shield spinach during unexpected late frosts. Be sure to remove covers during warm days to prevent overheating.
In warmer areas like Las Vegas, you can grow spinach almost year-round with careful planning. Just ensure to account for high summer temps that will require shade.
Look for bolt-resistant varieties like 'Bloomsdale Long Standing' or 'Space' for better results in Nevada’s warmer climate, ensuring longer harvests before it gets too hot.
Typical fall sowing window for Spinach in Nevada: October 4 – October 25.