When should I plant cilantro in ZIP 89101?

In ZIP 89101, the main cilantro target is around Feb 15, based on the representative Las Vegas frost station and USDA zone 9a.

When should I start cilantro seeds indoors in 89101?

Cilantro is usually direct-sown for ZIP 89101. Use the Feb 15 planting window instead of starting it indoors.

Is this a guaranteed planting date?

No. GrowZone uses frost-date estimates, hardiness zones, and crop timing rules for planning. Local microclimates and current weather can shift the right date.

ZIP 89101 planting calendar

When to plant cilantro in Las Vegas, NV - Zone 9a

Q: When is the first frost in Las Vegas?

Las Vegas (ZIP 89101) has an average first fall frost around Nov 20, leaving about 264 frost-free days.

In ZIP 89101, plant cilantro around Feb 15; this uses the Las Vegas frost station, USDA zone 9a, and cilantro timing rules.

Your Las Vegas calendar has a 264-day estimated frost-free season. This estimate uses the representative Las Vegas frost station, USDA zone 9a, and cilantro timing rules.

Source: las-vegas-harry-reid frost station, USDA zone 9a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

USDA zone 9a Las Vegas frost station University of Nevada Extension Updated 2026-06-28

Read the method

Answer first

When to start cilantro seeds indoors in Las Vegas

In ZIP 89101, cilantro is usually direct-sown around Feb 15 instead of started indoors.

Cilantro is normally direct-sown in Las Vegas. Use around Feb 15 as the outdoor planting window for ZIP 89101.

Seed starting schedule

Cilantro dates for Las Vegas, NV

Step	Date	How to use it
Direct Sow	February 15, 2026	Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in Las Vegas?

Las Vegas (ZIP 89101) has an average last spring frost around Mar 1.

First frost

When is the first frost in Las Vegas?

The average first fall frost is around Nov 20, giving about 264 frost-free days.

Season map

Cilantro windows by month

JanFebMarAprMayJunJulAugSepOctNovDec

Direct sow

Feb 15

Harvest

Apr 1

Frost watch

Oct 6

Reminder workflow

Every date has a next action

Direct sow cilantroFeb 15

Last frost windowMar 1

First cilantro harvest windowApr 1

Last cilantro sowing targetOct 6

Signal	Value	Why it matters
Last frost estimate	March 1, 2026	Warm-season transplant risk starts falling after this window.
First frost estimate	November 20, 2026	Fall planting counts backward from this date.
Season length	264 days	Longer seasons can support succession crops.
Spacing	4-6 in	Airflow and root space affect yield.
Soil temperature	45 F+	Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

Las Vegas frost history and USDA zone 9a shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

University of Nevada Extension is the kind of local source to verify against when a crop is expensive, weather is unusual, or your yard has a cold pocket.

Crop note

Cilantro timing notes

Sow small batches often because cilantro bolts in heat. Cilantro prefers sun to part shade, 4-6 in spacing, and soil near 45 F+.

For fall, count backward from Nov 20. A conservative last sowing target is around Oct 6.