When to plant Chamomile in Ohlman, IL
For Chamomile in Ohlman, the safe spring window opens around March 30 and closes around April 20. Last expected frost is April 13, first fall frost October 21, giving a 191-day growing season. A second sowing from August 12 to August 26 extends the harvest into fall.
When to Plant Chamomile in Ohlman, IL
Top priorities for Montgomery County, Illinois gardeners in June
We've pulled the most time-sensitive tasks for Montgomery County, Illinois this June and put them front and centre. Tackle them in order.
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Bring in the chamomile
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Looking ahead to July
- First harvests: chamomile
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.
Ohlman, Illinois is in USDA Zone 6b. The average last spring frost is April 13 and the first fall frost is October 21, giving you a growing season of approximately 191 days.
At an elevation of 1,331 feet, Montgomery County receives approximately 30.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Chamomile during the growing season.
Ohlman Soil Profile
Soil Type
Silt Loam
Soil pH
6.1-7.2
Drainage
Well Drained
Chamomile Planting Risk Windows
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 Ohlman
How your county's soil matches Chamomile's growing requirements.
Soil pH
Your soil pH (6.1–7.2) is within Chamomile's preferred range (5.6–7.5).
Soil Texture
The silt loam soil in Montgomery County is excellent for Chamomile — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Chamomile.
Organic Matter
Organic matter is excellent (5.2%) — Chamomile will thrive.
How to Plant Chamomile
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Chamomile
Sow every 6.9 weeks. Last sowing by Jul 23 to harvest before frost.
For a dedicated fall crop, sow by Aug 12.
Chamomile Water Budget
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 | — | 1.3" | 0" | ❄️ Dormant |
| Feb | — | 1.2" | 0" | ❄️ Dormant |
| Mar | — | 2.1" | 0" | ❄️ Dormant |
| Apr | 1.7" | 2.6" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 3.3" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 3.3" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 3.7" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 3.1" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 3.1" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 2.4" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.1" | 0" | ❄️ Dormant |
| Dec | — | 1.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Montgomery 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 Planting Timeline — Ohlman, IL
Chamomile Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 9 | Mar 9 – Mar 23 |
| Transplant Outdoors | April 6 | Apr 6 – Apr 20 |
| Direct Sow | March 30 | Mar 30 – Apr 20 |
| Harvest | June 8 | Jun 8 – Aug 17 |
| Fall Sowing | August 12 | Aug 12 – Aug 26 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| 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 6b
📆 Growing Season
191 days in Montgomery County
Growing Tips for Chamomile in Ohlman
Direct sow Chamomile outdoors after April 13 in Montgomery 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 →
Chamomile in Other Locations
When should I plant Chamomile in Ohlman, IL?
In Ohlman, IL, plant Chamomile after the last frost (around April 13) and before the first frost (around October 21). Best results when soil holds above 50°F.
What growing zone is Ohlman, IL for Chamomile?
Ohlman sits in USDA Zone 6b. Chamomile grows reliably in zones 3a through 9b, so it's a good fit here.
Can Chamomile grow in Ohlman's climate?
Yes — Chamomile grows well in Ohlman's temperate climate. Ohlman averages a 191-day frost-free season, with last frost around April 13 and first frost around October 21.
Your Montgomery County Garden Planner — Free
A 22-page printable planner built for Montgomery County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.