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When to Plant Chamomile in Grimes County, TX

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.

Grimes County, Texas is in USDA Zone 8b. The average last spring frost is February 25 and the first fall frost is December 1, giving you a growing season of approximately 279 days.

At an elevation of 33 feet, Grimes County receives approximately 65.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Chamomile during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Chamomile will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chamomile root diseases.

Grimes County, TX (Zone 8b) Year-round
279 days
Last Spring Frost February 25
279 growing days
First Fall Frost December 1

Grimes County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (157 days to spare)
Start indoors: Jan 8 Transplant: Feb 5 🍅 Harvest: Apr 9 – Jun 18
Recommended (50%) ✓ Fits season (153 days to spare)
Start indoors: Jan 21 Transplant: Feb 18 🍅 Harvest: Apr 22 – Jul 1
Safe Start (90%) ✓ Fits season (156 days to spare)
Start indoors: Feb 4 Transplant: Mar 4 🍅 Harvest: May 6 – Jul 15

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 Grimes County

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

Soil pH

Your soil pH (5.8โ€“6.5) is within Chamomile's preferred range (5.6โ€“7.5).

Soil Texture

Sandy soil in Grimes County warms quickly in spring but drains fast. Chamomile will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Chamomile.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting 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

5
successive plantings in your 279-day season

Sow every 6.9 weeks. Last sowing by Sep 02 to harvest before frost.

For a dedicated fall crop, sow by Sep 22.

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
Drought risk

Water stress score is 6/10 โ€” 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 โ€” 1.9" 0" โ„๏ธ Dormant
Feb 1.7" 2.1" 0" โœ… Rainfall sufficient
Mar 1.7" 4.7" 0" โœ… Rainfall sufficient
Apr 1.7" 6" 0" โœ… Rainfall sufficient
May 1.7" 9.9" 0" โœ… Rainfall sufficient
Jun 1.7" 9.9" 0" โœ… Rainfall sufficient
Jul 1.7" 8.3" 0" โœ… Rainfall sufficient
Aug 1.7" 8.3" 0" โœ… Rainfall sufficient
Sep 1.7" 6.6" 0" โœ… Rainfall sufficient
Oct 1.7" 3.9" 0" โœ… Rainfall sufficient
Nov 1.7" 2" 0" โœ… Rainfall sufficient
Dec 1.7" 1.7" 0" โœ… Rainfall sufficient

Water needs are for active growing months only (Febโ€“Dec in Grimes County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,369 GDD — county provides 5,110 GDD Excellent fit

Chamomile Planting Timeline โ€” Grimes County, TX

Chamomile Planting Calendar

Activity When Date Range
Start Indoors January 21 Jan 21 โ€“ Feb 4
Transplant Outdoors February 18 Feb 18 โ€“ Mar 4
Direct Sow February 11 Feb 11 โ€“ Mar 4
Harvest April 22 Apr 22 โ€“ Jul 1
Fall Sowing September 22 Sep 22 โ€“ Oct 6

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.4"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 5.6โ€“7.5 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

279 days in Grimes County

Growing Tips for Chamomile in Grimes County

Direct sow Chamomile outdoors after February 25 in Grimes County when soil has warmed and frost danger has passed.

Sandy soil in Grimes County dries quickly โ€” mulch Chamomile with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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

With 65" of annual rainfall in Grimes County, ensure good drainage for Chamomile โ€” excess moisture can promote root rot and fungal diseases.

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 Grimes County, TX?

Grimes County is in Zone 8b with an average last frost of February 25. Plan your Chamomile planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Grimes County, TX?

Grimes County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 25 and first fall frost is December 1.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Grimes County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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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 Grimes County, TX. Local conditions may vary. Last updated: April 2026.