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When to Plant Chamomile in Ripley County, MO

Ripley County, Missouri Zone 7a May

Your May planting checklist for Ripley County, Missouri

A quick May briefing for Ripley County, Missouri gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 27
Avg. first frost November 2
Soil temp (4") 63°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Sow chamomile in trays indoors

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  2. Start harvesting chamomile

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

June will be here before you know it — start on
  • 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.

Ripley County, Missouri is in USDA Zone 7a. The average last spring frost is March 27 and the first fall frost is November 2, giving you a growing season of approximately 220 days.

At an elevation of 1,300 feet, Ripley County receives approximately 38.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Chamomile during the growing season.

Ripley County, MO (Zone 7a) Long season
220 days
Last Spring Frost March 27
220 growing days
First Fall Frost November 2

Ripley County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Start indoors: Feb 12 Transplant: Mar 12 🍅 Harvest: May 14 – Jul 23
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: May 22 – Jul 31
Safe Start (90%) ✓ Fits season (94 days to spare)
Start indoors: Mar 13 Transplant: Apr 10 🍅 Harvest: Jun 12 – Aug 21

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 Ripley County

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

Soil pH

Your soil pH (5.7–6.8) is within Chamomile's preferred range (5.6–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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 220-day season

Sow every 6.9 weeks. Last sowing by Aug 04 to harvest before frost.

For a dedicated fall crop, sow by Aug 24.

Plant Water Budget

Plant needs
0.4″/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 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 1.8" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 1.7" 2.6" 0" ✅ Rainfall sufficient
Apr 1.7" 3.5" 0" ✅ Rainfall sufficient
May 1.7" 4.6" 0" ✅ Rainfall sufficient
Jun 1.7" 5.3" 0" ✅ Rainfall sufficient
Jul 1.7" 4.7" 0" ✅ Rainfall sufficient
Aug 1.7" 3.8" 0" ✅ Rainfall sufficient
Sep 1.7" 3.1" 0" ✅ Rainfall sufficient
Oct 1.7" 2.8" 0" ✅ Rainfall sufficient
Nov 1.7" 2.4" 0" ✅ Rainfall sufficient
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Ripley 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 ~1,256 GDD — county provides 3,685 GDD Excellent fit

Chamomile Planting Timeline — Ripley County, MO

Chamomile Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 13 Mar 13 – Apr 3
Harvest May 22 May 22 – Jul 31
Fall Sowing August 24 Aug 24 – Sep 7

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August Fall Sowing
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: ideal

🗺️ USDA Zone

Zone 7a

📆 Growing Season

220 days in Ripley County

Growing Tips for Chamomile in Ripley County

Direct sow Chamomile outdoors after March 27 in Ripley 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 Ripley County, MO?

Ripley County is in Zone 7a with an average last frost of March 27. Plan your Chamomile planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ripley County, MO?

Ripley County, Missouri is in USDA Hardiness Zone 7a. The average last spring frost is March 27 and first fall frost is November 2.

🌱

Your Ripley County Garden Planner — Free

A 24-page printable planner built for Ripley 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 Ripley County, MO. 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.