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Growing Amaranth in Raleigh

🇺🇸 Zone 6 Planting Guide · Humid subtropical climate

USDA Zone 6 225 frost-free days 90-120 days to harvest

Quick Answer: Growing Amaranth in Raleigh

Yes, you can grow Amaranth in Raleigh, US! Plant during Apr, May, Jun, Jul for best results. Raleigh is in USDA Zone 6 with a Humid subtropical climate, offering 225 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 Raleigh + Amaranth

Raleigh's climate requires careful timing. Winter lows (-1°C) drop below Amaranth's minimum (10°C), so avoid cold months. Follow the recommended planting months for success.

Amaranth tolerates 10°C to 38°C
Optimal: 20°C - 30°C
Raleigh range -1°C to 32°C

Raleigh Climate Data

USDA Zone
6
Frost-Free
225days
Winter Low
-1°C
Summer High
32°C
Rainfall
1190mm/yr
Climate
Cfa
Humid subtropical

Amaranth Planting Calendar for Raleigh

Green months show the best time to plant Amaranth in Raleigh

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 Raleigh.

How to Grow Amaranth in Raleigh

Raleigh, US is in USDA Hardiness Zone 6 with a Humid subtropical climate (Köppen Cfa). With winter lows of -1°C and summer highs of 32°C, the growing season spans approximately 225 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 Raleigh, the best months to plant Amaranth are April, May, June, July. 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.

Raleigh receives 1190mm of annual rainfall, which provides good natural moisture for Amaranth. Monitor soil moisture and water as needed.

Other Plants That Grow in Raleigh

More plants you can grow alongside Amaranth in Raleigh

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Frequently Asked Questions

Can I grow amaranth in Raleigh?

Yes! Amaranth can be successfully grown in Raleigh, US. Raleigh is in USDA Hardiness Zone 6 with a Humid subtropical climate. The difficulty level for growing Amaranth here is rated "medium". The best months to plant are April, May, June, July.

When should I plant amaranth in Raleigh?

In Raleigh, the recommended planting months for Amaranth are April, May, June, July. Raleigh has 225 frost-free days per year, with winter lows of -1°C and summer highs of 32°C. Since Amaranth is not frost tolerant, make sure to plant after the last frost date.

How long does amaranth take to grow in Raleigh?

Amaranth typically takes 90-120 days from planting to harvest. In Raleigh's Humid subtropical climate with 225 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 Raleigh?

Amaranth can potentially be grown indoors in Raleigh 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 Apr, May, Jun, Jul outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant amaranth in Raleigh?

Plant Amaranth in Raleigh during April, May, June, July. These are the optimal months based on Raleigh's USDA Zone 6 climate, 225 frost-free days, and temperature range of -1°C to 32°C.

Is amaranth hard to grow in Raleigh?

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

What grows well with amaranth in Raleigh?

In Raleigh, 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 Raleigh's Zone 6 climate.

Does amaranth need full sun in Raleigh?

Amaranth requires full sun. In Raleigh, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

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

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