Nevada · zones 5b–9a
When to plant spinach in Nevada.
Sow between Mar 18 to Apr 29 in a typical year, keyed to Nevada's median last frost around May 9. A second, fall sowing fits Jul 15 to Sep 2. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Spinach dates for a typical Nevada season.
Direct sow
Mar 18 to Apr 29
Keyed to the ~May 9 last frost. Sow 0.5" deep, 3" apart.
Fall round
Jul 15 to Sep 2
Counted back from the ~Sep 28 first frost.
Harvest
~42 days later
~0.25 lb per plant over ~1 weeks.
Nevada spans more than one climate: Zone 6 is the most common zone, but the state runs 5b to 9a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
Nevada growing notes
Spinach gets more sowings than anything else grown in Nevada, close to fifteen in a year, mostly because real cold almost never stops it the way frost stops the crops around it.
The crop that treats winter as easy
Spinach matures faster than the other cool-season crops here, about 42 days from a direct sowing set a half inch deep and just 3 inches apart, and Nevada's growing calendar supports something like fifteen separate sowings across a year, the most of any vegetable grown in the state. That number is possible because spinach does not share the usual reason for stopping in winter: a light freeze that would finish a bed of lettuce or beans barely slows it down, so the real edges of a spinach year are set by whether the ground itself is frozen and unworkable, not by whether frost is coming.
That changes what the off-season means depending on elevation. In the state's colder ground, toward the highest zones, a hard freeze locks the soil solid, and that, not the plant's own tolerance, is what actually ends the run. In the low desert, the ground rarely freezes through at all, so a fall sowing can carry through the mildest stretch of winter and into an early spring harvest with barely a pause, a reversal that fits oddly in a state known mostly for its summer heat.
Lengthening days end a planting, and heat only hurries it
Spinach bolts, pushing up a central seed stalk and turning the leaves thin and sharp, largely in response to lengthening days rather than heat alone, so a planting can start bolting even during a stretch of still-mild weather if it goes in too late in the year's lengthening half. The tell is the center of the rosette: leaves coming in narrower and more upright than the round, spade-shaped ones around them, with a stem just starting to push up from the middle, mean the planting has already decided to finish. Watering more, or shading the bed, does not slow this down once it starts, since neither one changes day length.
The practical response is to front-load the fifteen rounds rather than spread them evenly: a sowing while days are still short and building, and another once they have started shrinking back, works with the crop's actual limit instead of against it. A quarter pound of leaf per plant is a modest return on its own, which is exactly why the many small, frequent sowings matter more for spinach than they would for a crop that gives more per planting.
A tunneling fly, and three threats that show themselves differently
Leaf miner damage looks nothing like chewing: pale, blotchy trails or blister-like pockets appear between the top and bottom surface of a leaf, with the larva visible as a small pale grub if the blotch is held up to the light. Squeezing the blister between two fingers kills the larva inside without needing to pull or spray the leaf, and catching it at this stage saves the leaf tissue around the mine instead of just the mined patch itself.
Flea beetles go after spinach at its most vulnerable point, the first couple of true leaves right after germination, leaving a scatter of small round holes that a mature plant shrugs off but a fresh seedling cannot always outgrow. Aphids gather low on the newest leaves near the crown, puckering them as they feed, while Cercospora leaf spot shows up as small, circular tan spots ringed with a narrow purple-brown edge, usually following a stretch of overhead watering or an unusually damp week. Checking a new sowing's first true leaves in its opening week catches the flea beetle damage while the plant can still recover from it.
In Nevada: watch for
The pests that find spinach here.
The short season here, about 142 frost-free days, keeps spinach in front of leaf miners only briefly. One early row cover usually carries a planting through the worst of it.
Winding pale tunnels or blotches inside the leaves.
Organic fix: Pick and destroy mined leaves; cover the row.
Cercospora leaf spot
Round spots with gray centers and a red-purple rim, oldest leaves worst.
Organic fix: Space wider so leaves dry fast, clear old debris, and pull pigweed and lambsquarters nearby.
Your season math: Nevada gives spinach about 142 frost-free days, and it needs roughly 42 days to a first harvest. That fits about 15 re-sown rounds across the season, so you can keep it coming instead of picking once.
Planting spinach in Nevada: questions
When should I plant spinach in Nevada?+
In a typical Nevada year, sow spinach between Mar 18 to Apr 29, keyed to the state's median last frost around May 9. There's also a fall window: Jul 15 to Sep 2. Your exact dates shift with your ZIP code and microclimate.
What USDA zone is Nevada?+
Nevada spans zones 5b–9a, mostly zone 6. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many spinach plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.