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When to Plant Chamomile in Trigg County, KY

Trigg County, Kentucky Zone 7a May

Your May gardening checklist

Each item below is timed to Trigg County, Kentucky's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 5
Avg. first frost October 30
Soil temp (4") 61°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Get chamomile seeds going inside

    You're about 23 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. Harvest chamomile as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Coming up in June — start thinking about
  • First harvests: chamomile

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Chamomile is a daisy-like herb famous for its calming, apple-scented tea. German chamomile is an annual while Roman chamomile is a perennial ground cover.

Trigg County, Kentucky is in USDA Zone 7a. The average last spring frost is April 5 and the first fall frost is October 30, giving you a growing season of approximately 208 days.

At an elevation of 1,825 feet, Trigg County receives approximately 48.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Chamomile during the growing season.

Trigg County, KY (Zone 7a) Long season
208 days
Last Spring Frost April 5
208 growing days
First Fall Frost October 30

Trigg County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (84 days to spare)
Start indoors: Feb 23 Transplant: Mar 23 🍅 Harvest: May 25 – Aug 3
Recommended (50%) ✓ Fits season (82 days to spare)
Start indoors: Mar 1 Transplant: Mar 29 🍅 Harvest: May 31 – Aug 9
Safe Start (90%) ✓ Fits season (83 days to spare)
Start indoors: Mar 14 Transplant: Apr 11 🍅 Harvest: Jun 13 – Aug 22

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 Trigg County

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

Soil pH

Your soil pH (5.2–6.8) overlaps with Chamomile's range (5.6–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Chamomile.

How to Plant Chamomile

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

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

Succession Planting Chamomile

4
successive plantings in your 208-day season

Sow every 6.9 weeks. Last sowing by Aug 01 to harvest before frost.

For a dedicated fall crop, sow by Aug 21.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Chamomile

Chamomile needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Chamomile Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 1.7" 3.5" 0" ✅ Rainfall sufficient
May 1.7" 4.2" 0" ✅ Rainfall sufficient
Jun 1.7" 4" 0" ✅ Rainfall sufficient
Jul 1.7" 5.7" 0" ✅ Rainfall sufficient
Aug 1.7" 4.3" 0" ✅ Rainfall sufficient
Sep 1.7" 3.9" 0" ✅ Rainfall sufficient
Oct 1.7" 3.7" 0" ✅ Rainfall sufficient
Nov 3.4" 0" ❄️ Dormant
Dec 3.7" 0" ❄️ Dormant

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

Chamomile 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.

Chamomile needs ~1,200 GDD — county provides 3,328 GDD Excellent fit

Chamomile Planting Timeline — Trigg County, KY

Chamomile Planting Calendar

Activity When Date Range
Start Indoors March 1 Mar 1 – Mar 15
Transplant Outdoors March 29 Mar 29 – Apr 12
Direct Sow March 22 Mar 22 – Apr 12
Harvest May 31 May 31 – Aug 9
Fall Sowing August 21 Aug 21 – Sep 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.4"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

208 days in Trigg County

Growing Tips for Chamomile in Trigg County

Direct sow Chamomile outdoors after April 05 in Trigg County when soil has warmed and frost danger has passed.

Common pests for Chamomile in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow on the soil surface as seeds need light. Harvest flowers when petals begin to curl back. Chamomile self-sows freely and improves the health of nearby plants.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chamomile in Trigg County, KY?

Trigg County is in Zone 7a with an average last frost of April 5. Plan your Chamomile planting based on this frost date — see the calendar above for exact timing.

What planting zone is Trigg County, KY?

Trigg County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 5 and first fall frost is October 30.

🌱

Your Trigg County Garden Planner — Free

A 24-page printable planner built for Trigg County (Zone 7a). 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 Trigg County, KY. 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.