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Growing Amaranth in Las Vegas

🇺🇸 Zone 7 Planting Guide · Hot desert climate

USDA Zone 7 280 frost-free days 90-120 days to harvest

Quick Answer: Growing Amaranth in Las Vegas

Yes, you can grow Amaranth in Las Vegas, US! Plant during Feb, Mar, Apr, May for best results. Las Vegas is in USDA Zone 7 with a Hot desert climate, offering 280 frost-free days per year. The difficulty level is medium, and Amaranth takes 90-120 days to harvest. Amaranth needs full sun and moderate watering.

Climate Match Analysis

Moderate Match Las Vegas + Amaranth

Las Vegas's climate requires careful timing. Winter lows (2°C) drop below Amaranth's minimum (10°C), so avoid cold months. Summer highs (40°C) exceed Amaranth's maximum (38°C), so plant early or provide shade. Follow the recommended planting months for success.

Amaranth tolerates 10°C to 38°C
Optimal: 20°C - 30°C
Las Vegas range 2°C to 40°C

Las Vegas Climate Data

USDA Zone
7
Frost-Free
280days
Winter Low
2°C
Summer High
40°C
Rainfall
110mm/yr
Climate
BWh
Hot desert

Amaranth Planting Calendar for Las Vegas

Green months show the best time to plant Amaranth in Las Vegas

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Amaranth Not recommended

Amaranth Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

90-120

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Amaranth

Direct sow after last frost. Drought-tolerant once established. Wait until soil warms to at least 20°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Frost tolerance: Amaranth is NOT frost tolerant — wait until after the last frost in Las Vegas.

How to Grow Amaranth in Las Vegas

Las Vegas, US is in USDA Hardiness Zone 7 with a Hot desert climate (Köppen BWh). With winter lows of 2°C and summer highs of 40°C, the growing season spans approximately 280 frost-free days. Amaranth grows well with some gardening knowledge in this climate.

Amaranth thrives in temperatures between 20°C and 30°C, requiring full sun and moderate watering. In Las Vegas, the best months to plant Amaranth are February, March, April, May. Amaranth is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 90-120 days after planting.

Las Vegas receives only 110mm of annual rainfall, so consistent irrigation will be essential for growing Amaranth successfully.

Other Plants That Grow in Las Vegas

More plants you can grow alongside Amaranth in Las Vegas

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Frequently Asked Questions

Can I grow amaranth in Las Vegas?

Yes! Amaranth can be successfully grown in Las Vegas, US. Las Vegas is in USDA Hardiness Zone 7 with a Hot desert climate. The difficulty level for growing Amaranth here is rated "medium". The best months to plant are February, March, April, May.

When should I plant amaranth in Las Vegas?

In Las Vegas, the recommended planting months for Amaranth are February, March, April, May. Las Vegas has 280 frost-free days per year, with winter lows of 2°C and summer highs of 40°C. Since Amaranth is not frost tolerant, make sure to plant after the last frost date.

How long does amaranth take to grow in Las Vegas?

Amaranth typically takes 90-120 days from planting to harvest. In Las Vegas's Hot desert climate with 280 frost-free days, you have plenty of time to grow Amaranth to maturity. Direct sow after last frost. Drought-tolerant once established. Wait until soil warms to at least 20°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow amaranth indoors in Las Vegas?

Amaranth can potentially be grown indoors in Las Vegas with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Feb, Mar, Apr, May outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant amaranth in Las Vegas?

Plant Amaranth in Las Vegas during February, March, April, May. These are the optimal months based on Las Vegas's USDA Zone 7 climate, 280 frost-free days, and temperature range of 2°C to 40°C.

Is amaranth hard to grow in Las Vegas?

Amaranth is rated "medium" to grow in Las Vegas. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Amaranth in Las Vegas is Moderate.

What grows well with amaranth in Las Vegas?

In Las Vegas, you can grow many companion plants alongside Amaranth. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Las Vegas's Zone 7 climate.

Does amaranth need full sun in Las Vegas?

Amaranth requires full sun. In Las Vegas, provide at least 6 hours of direct sunlight daily. During peak summer heat, some afternoon shade can help prevent heat stress.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

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