Nevada · zones 5b9a

When to plant kale in Nevada.

Sow or transplant between Apr 1 to Apr 29 in a typical year, keyed to Nevada's median last frost around May 9. A second, fall sowing fits Jun 28 to Aug 13. Dates below are state medians; your ZIP code shifts them by days to weeks.

The 2026 windows

Kale dates for a typical Nevada season.

1 · Start indoors

Feb 18 to Mar 18

About 6 weeks before set-out. Warm spot, real light.

2 · Set out

Apr 1 to Apr 29

Keyed to the ~May 9 last frost. Sow 0.25" deep, 16" apart.

Fall round

Jun 28 to Aug 13

Counted back from the ~Sep 28 first frost.

Harvest

~45 days later

~2 lb per plant over ~16 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

One kale planting can outlast every other cool-season crop it shares a Nevada garden bed with, cut from the same handful of plants for months after its neighbors have already bolted.

Why one planting is enough

Kale goes into the ground as a transplant, spaced a generous 16 inches apart, wider than most cool-season crops grown here, and reaches usable size in about 45 days. Unlike the direct-seeded crops sown in repeated rounds through the year, a kale bed is planted once and then cut from for months afterward, each plant giving back something like 2 pounds of leaf over its life, more than most of the other cool-season vegetables that share its season. That per-plant return is most of the reason one planting is enough: there is little to gain from restarting a bed that is already producing.

What lets that single planting stretch so long is real cold tolerance. If an early freeze blackens a nearby bed of lettuce or beans overnight, the kale in the next row over is often still standing the next morning, leaves intact. In the state's higher, colder ground, that tolerance pushes the harvest deep into winter weather that has already ended every other crop's year. In the low desert, where a hard freeze is rare to begin with, that same tolerance means a fall-planted bed can simply keep going, cut steadily through the mild months instead of finishing and needing to be replanted.

The variety decides how easy the leaf is to keep clean

A curly-leaved variety like Redbor or Winterbor packs a lot of leaf into that 16-inch spacing, but the tight ruffles that make it productive also trap grit, aphids, and moisture down in the folds where a quick rinse does not reach as well. A flatter-leaved type such as Lacinato, sometimes sold as dinosaur kale, gives up a little of that density but rinses clean in one pass and makes a developing aphid colony far easier to spot before it takes hold.

Aphids on kale cluster inside those same protected folds, curly or flat, favoring the newest leaves closest to the growing point. A firm spray aimed directly into the crown, not just across the surface of the plant, reaches them on a curly variety; a lighter pass does the job on a flat-leafed one. Checking the newest leaves each time you cut, instead of running a separate inspection, catches a colony without adding another chore to the week.

Protecting the transplant first, then watching what follows

Cabbage root maggot lays its eggs right at a transplant's base, and once they hatch the larvae tunnel straight down to feed on the roots underground, out of reach of anything sprayed on the leaves above. A simple collar, a few inches of cardboard or stiff paper fitted snugly around the stem at the soil line right at transplanting, blocks the fly from laying there in the first place and costs only a few minutes per plant. Flea beetles threaten that same young transplant from above during roughly the same early window, leaving small round holes in the first leaves; a plant that gets established past its first couple of weeks usually outgrows the damage on its own.

Cabbage worms and loopers show up all season on an established planting, favoring the undersides of the newest leaves near the crown, and their green color blends well enough with kale that the eggs and small caterpillars are often easier to spot than the caterpillars themselves once grown; check for ragged, chewed holes first, then look underneath the leaf near the damage. Black rot moves differently, entering through the leaf edge and working inward as a yellow, wedge-shaped patch with the veins inside it turned dark and brittle, distinct enough from insect feeding that it is rarely mistaken for anything else once you have seen it.

In Nevada: watch for

The pests that find kale here.

The short season here, about 142 frost-free days, keeps kale in front of cabbage worms & loopers only briefly. One early row cover usually carries a planting through the worst of it.

Cabbage worms & loopers

Green caterpillars chewing ragged holes; green droppings.

Organic fix: Handpick, cover with netting, spray Bt.

Aphids

Gray-green clusters tucked into the leaf folds.

Organic fix: Blast with water, then insecticidal soap.

Flea beetles

Tiny holes peppering the young leaves.

Organic fix: Row cover from day one; diatomaceous earth.

Black rot

Yellow V-shaped wedges cutting in from the leaf edge, veins blackening inside.

Organic fix: Pull infected plants, water at the base, keep brassicas out of that bed 3 years.

Cabbage root maggot

Seedlings wilt, yellow and stall for no reason; white maggots tunnel the roots.

Organic fix: Row cover before the flies are up, when yellow rocket blooms; rotate the bed.

Your season math: Nevada gives kale about 142 frost-free days, and it needs roughly 45 days to a first harvest. It's a one-planting crop, so time that single sowing well.

Planting kale in Nevada: questions

When should I plant kale in Nevada?+

In a typical Nevada year, sow kale or set out transplants between Apr 1 to Apr 29, keyed to the state's median last frost around May 9. There's also a fall window: Jun 28 to Aug 13. Your exact dates shift with your ZIP code and microclimate.

When do I start kale seeds indoors in Nevada?+

Start seeds inside about 6 weeks before set-out: roughly Feb 18 to Mar 18 for a typical Nevada season.

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 kale 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.