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When to Plant Chamomile in Zapata 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.

Zapata County, Texas is in USDA Zone 9a. The average last spring frost is February 3 and the first fall frost is December 14, giving you a growing season of approximately 314 days.

At an elevation of 3,340 feet, Zapata County receives approximately 60.6 inches of rainfall annually with predominantly loam soil. Summer highs average 103ยฐF, so Chamomile may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chamomile root diseases.

Zapata County, TX (Zone 9a) Year-round
314 days
Last Spring Frost February 3
314 growing days
First Fall Frost December 14

Zapata County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (197 days to spare)
Start indoors: Dec 20 Transplant: Jan 10 🍅 Harvest: Mar 14 – May 23
Recommended (50%) ✓ Fits season (188 days to spare)
Start indoors: Jan 6 Transplant: Jan 27 🍅 Harvest: Mar 31 – Jun 9
Safe Start (90%) ✓ Fits season (174 days to spare)
Start indoors: Jan 30 Transplant: Feb 20 🍅 Harvest: Apr 24 – Jul 3

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 Zapata County

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

Soil pH

Your soil pH (6.2โ€“7.6) overlaps with Chamomile's range (5.6โ€“7.5), though not a perfect match.

Soil Texture

The loam soil in Zapata County is excellent for Chamomile โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Chamomile.

How to Plant Chamomile

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Chamomile

6
successive plantings in your 314-day season

Sow every 6.9 weeks. Last sowing by Sep 15 to harvest before frost.

For a dedicated fall crop, sow by Oct 19.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
0.8″/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 โ€” 1.3" 0" โ„๏ธ Dormant
Feb 1.7" 2.3" 0" โœ… Rainfall sufficient
Mar 1.7" 4.1" 0" โœ… Rainfall sufficient
Apr 1.7" 6.3" 0" โœ… Rainfall sufficient
May 1.7" 7.6" 0" โœ… Rainfall sufficient
Jun 1.7" 10.1" 0" โœ… Rainfall sufficient
Jul 1.7" 8.6" 0" โœ… Rainfall sufficient
Aug 1.7" 7.4" 0" โœ… Rainfall sufficient
Sep 1.7" 6.1" 0" โœ… Rainfall sufficient
Oct 1.7" 3.3" 0" โœ… Rainfall sufficient
Nov 1.7" 2" 0" โœ… Rainfall sufficient
Dec 1.7" 1.3" 0.4" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Zapata 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 ~2,044 GDD — county provides 8,583 GDD Excellent fit

Chamomile Planting Timeline โ€” Zapata County, TX

Chamomile Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 โ€“ Jan 20
Transplant Outdoors January 27 Jan 27 โ€“ Feb 10
Direct Sow January 13 Jan 13 โ€“ Feb 3
Harvest March 31 Mar 31 โ€“ Jun 9
Fall Sowing October 19 Oct 19 โ€“ Nov 2

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

Month-by-Month Timeline

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

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

314 days in Zapata County

Growing Tips for Chamomile in Zapata County

Direct sow Chamomile outdoors after February 03 in Zapata County when soil has warmed and frost danger has passed.

With summer highs reaching 103ยฐF in Zapata County, provide afternoon shade for Chamomile and water deeply in the morning.

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

With 61" of annual rainfall in Zapata 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 Zapata County, TX?

Zapata County is in Zone 9a with an average last frost of February 3. Plan your Chamomile planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Zapata County, TX?

Zapata County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 3 and first fall frost is December 14.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Zapata County gardeners in Zone 9a 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 Zapata County, TX. Local conditions may vary. Last updated: April 2026.