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When to Plant Turmeric in Dallas County, AR

Dallas County, Arkansas Zone 8a May

May in Dallas County, Arkansas — your action list

May is a pivotal month for Dallas County, Arkansas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 70°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
  1. Fire up the seed-starting tray: turmeric

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

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Turmeric is a tropical plant producing bright orange rhizomes with a warm, earthy flavor and potent anti-inflammatory properties. It is closely related to ginger.

Dallas County, Arkansas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 305 feet, Dallas County receives approximately 45.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Turmeric during the growing season.

Dallas County, AR (Zone 8a) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Dallas County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Jan 23 Transplant: Mar 27 🍅 Harvest: Nov 27 – Dec 11
Recommended (50%) ✗ May not fit
Start indoors: Jan 30 Transplant: Apr 3 🍅 Harvest: Dec 4 – Dec 18
Safe Start (90%) ✓ Fits season (326 days to spare)
Start indoors: Feb 19 Transplant: Apr 23 🍅 Harvest: Dec 24 – Jan 7

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Dallas County

How your county's soil matches Turmeric's growing requirements.

Soil pH

Your soil pH (5.6–6.8) is within Turmeric's preferred range (5.5–7.5).

Soil Texture

The silt loam soil in Dallas County is excellent for Turmeric — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Turmeric.

How to Plant Turmeric

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,446 gal / 100 sq ft

Monthly Watering Guide for Turmeric

Turmeric needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Turmeric Needs Rainfall You Supplement Action
Jan 3.9" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 6.5" 4.2" 2.3" 💧 Light watering
Apr 6.5" 3.2" 3.3" 🚿 Regular watering
May 6.5" 4.1" 2.4" 💧 Light watering
Jun 6.5" 4.3" 2.2" 💧 Light watering
Jul 6.5" 4" 2.5" 💧 Light watering
Aug 6.5" 4.6" 1.9" 💧 Light watering
Sep 6.5" 3.9" 2.6" 💧 Light watering
Oct 6.5" 3.2" 3.3" 🚿 Regular watering
Nov 6.5" 3.3" 3.2" 💧 Light watering
Dec 3.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Dallas County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Turmeric Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Turmeric needs ~4,725 GDD — county provides 4,130 GDD May not mature

Turmeric Planting Timeline — Dallas County, AR

Turmeric Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest December 4 Dec 4 – Dec 18

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
May
June
July
August
September
October
November
December Harvest

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

240–300 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

236 days in Dallas County

Growing Tips for Turmeric in Dallas County

Direct sow Turmeric outdoors after March 20 in Dallas County when soil has warmed and frost danger has passed.

Your 236.0-day growing season in Dallas County is tight for Turmeric (240.0-300.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant rhizome pieces 2 inches deep in rich, moist soil after last frost. Maintain warmth and humidity. Harvest after foliage dies back in fall. In cold climates, grow in large containers.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Turmeric in Dallas County, AR?

Dallas County is in Zone 8a with an average last frost of March 20. Plan your Turmeric planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dallas County, AR?

Dallas County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 11.

🌱

Your Dallas County Garden Planner — Free

A 24-page printable planner built for Dallas County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Dallas County, AR. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.