When to plant Chamomile in Calvert County, MD
Calvert County gardeners should plant Chamomile between March 16 and April 6 in spring. With Calvert County's Zone 7b climate (last frost March 30), Chamomile needs 60–90 days to mature — plant by August 12 for a full harvest. A second sowing from September 1 to September 15 extends the harvest into fall.
When to Plant Chamomile in Calvert County, MD
June in the garden — Calvert County, Maryland
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
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Harvest chamomile as they ripen
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
A few tasks this June that'll pay off in 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.
Calvert County, Maryland is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 10, giving you a growing season of approximately 225 days.
At an elevation of 539 feet, Calvert County receives approximately 46.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Chamomile during the growing season.
Calvert County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.9
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 Calvert County
How your county's soil matches Chamomile's growing requirements.
Soil pH
Your soil pH (5.5–6.9) overlaps with Chamomile's range (5.6–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Calvert County is excellent for Chamomile — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Chamomile.
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 Aug 12 to harvest before frost.
For a dedicated fall crop, sow by Sep 01.
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 | — | 3.2" | 0" | ❄️ Dormant |
| Feb | — | 3.4" | 0" | ❄️ Dormant |
| Mar | 1.7" | 3.6" | 0" | ✅ Rainfall sufficient |
| Apr | 1.7" | 3.8" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 5.1" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 3.9" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 4" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 4.2" | 0" | ✅ Rainfall sufficient |
| Nov | 1.7" | 3.2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Calvert 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 — Calvert County, MD
Chamomile Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 23 | Feb 23 – Mar 9 |
| Transplant Outdoors | March 23 | Mar 23 – Apr 6 |
| Direct Sow | March 16 | Mar 16 – Apr 6 |
| Harvest | May 25 | May 25 – Aug 3 |
| Fall Sowing | September 1 | Sep 1 – Sep 15 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | 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 7b
📆 Growing Season
225 days in Calvert County
Growing Tips for Chamomile in Calvert County
Direct sow Chamomile outdoors after March 30 in Calvert 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
Frequently Asked Questions
When should I plant Chamomile in Calvert County, MD?
Calvert County is in Zone 7b with an average last frost of March 30. Plan your Chamomile planting based on this frost date — see the calendar above for exact timing.
What planting zone is Calvert County, MD?
Calvert County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 10.
When should I plant Chamomile in Calvert County, MD?
In Calvert County, MD, plant Chamomile after the last frost (around March 30) and before the first frost (around November 10). Best results when soil holds above 50°F.
What growing zone is Calvert County, MD for Chamomile?
Calvert County sits in USDA Zone 7b. Chamomile grows reliably in zones 3a through 9b, so it's a good fit here.
Can Chamomile grow in Calvert County's climate?
Yes — Chamomile grows well in Calvert County's temperate climate. Calvert County averages a 225-day frost-free season, with last frost around March 30 and first frost around November 10.
Your Calvert County Garden Planner — Free
A 22-page printable planner built for Calvert County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.