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When to Plant Cumin in Hendricks County, IN

Hendricks County, Indiana Zone 6a May

Hendricks County, Indiana gardeners: here's your May plan

We've pulled the most time-sensitive tasks for Hendricks County, Indiana this May and put them front and centre. Tackle them in order.

Avg. last frost April 16
Avg. first frost October 19
Soil temp (4") 61°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Sow cumin in trays indoors

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

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Cumin is a warm-season annual herb whose seeds are one of the most widely used spices globally. It requires a long, hot growing season of 3-4 months.

Hendricks County, Indiana is in USDA Zone 6a. The average last spring frost is April 16 and the first fall frost is October 19, giving you a growing season of approximately 186 days.

At an elevation of 1,286 feet, Hendricks County receives approximately 32.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Cumin during the growing season.

Hendricks County, IN (Zone 6a) Moderate season
186 days
Last Spring Frost April 16
186 growing days
First Fall Frost October 19
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Hendricks County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (25 days to spare)
Start indoors: Mar 6 Transplant: Apr 3 🍅 Harvest: Jul 17 – Sep 18
Recommended (50%) ✓ Fits season (25 days to spare)
Start indoors: Mar 12 Transplant: Apr 9 🍅 Harvest: Jul 23 – Sep 24
Safe Start (90%) ✓ Fits season (23 days to spare)
Start indoors: Mar 28 Transplant: Apr 25 🍅 Harvest: Aug 8 – Oct 10

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 Hendricks County

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

Soil pH

Your soil pH (6.2–7.2) is within Cumin's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (5.2%) — Cumin will thrive.

How to Plant Cumin

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cumin

Cumin needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Cumin Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 2.2" 3" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 3.8" 0" ✅ Rainfall sufficient
Jul 2.2" 3.6" 0" ✅ Rainfall sufficient
Aug 2.2" 3.6" 0" ✅ Rainfall sufficient
Sep 2.2" 3.1" 0" ✅ Rainfall sufficient
Oct 2.2" 2.3" 0" ✅ Rainfall sufficient
Nov 2.3" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

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

Cumin 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.

Cumin needs ~1,760 GDD — county provides 2,976 GDD Excellent fit

Cumin Planting Timeline — Hendricks County, IN

Cumin Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 – Mar 26
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow April 2 Apr 2 – Apr 23
Harvest July 23 Jul 23 – Sep 24
Fall Sowing August 10 Aug 10 – Aug 24

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

186 days in Hendricks County

Growing Tips for Cumin in Hendricks County

Direct sow Cumin outdoors after April 16 in Hendricks County when soil has warmed and frost danger has passed.

Common pests for Cumin in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4 weeks before last frost. Transplant after all danger of frost. Harvest when seed heads turn brown. Requires consistent warmth for proper seed development.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cumin in Hendricks County, IN?

Hendricks County is in Zone 6a with an average last frost of April 16. Plan your Cumin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hendricks County, IN?

Hendricks County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 16 and first fall frost is October 19.

🌱

Your Hendricks County Garden Planner — Free

A 24-page printable planner built for Hendricks County (Zone 6a). 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 Hendricks County, IN. 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.