Blog

When to Plant Chamomile in Hidalgo 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.

Hidalgo County, Texas is in USDA Zone 9b. The average last spring frost is February 6 and the first fall frost is December 18, giving you a growing season of approximately 315 days.

At an elevation of 4,081 feet, Hidalgo County receives approximately 67 inches of rainfall annually with predominantly loam soil. Summer highs average 100ยฐF, 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.

Hidalgo County, TX (Zone 9b) Year-round
315 days
Last Spring Frost February 6
315 growing days
First Fall Frost December 18

Hidalgo County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (202 days to spare)
Start indoors: Dec 21 Transplant: Jan 11 🍅 Harvest: Mar 15 – May 24
Recommended (50%) ✓ Fits season (189 days to spare)
Start indoors: Jan 9 Transplant: Jan 30 🍅 Harvest: Apr 3 – Jun 12
Safe Start (90%) ✓ Fits season (169 days to spare)
Start indoors: Feb 5 Transplant: Feb 26 🍅 Harvest: Apr 30 – Jul 9

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 Hidalgo County

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

Soil pH

Your soil pH (6.2โ€“7.8) overlaps with Chamomile's range (5.6โ€“7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). 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 315-day season

Sow every 6.9 weeks. Last sowing by Sep 19 to harvest before frost.

For a dedicated fall crop, sow by Oct 23.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
0.9″/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€” 1.4" 0" โ„๏ธ Dormant
Feb 1.7" 2.1" 0" โœ… Rainfall sufficient
Mar 1.7" 3.6" 0" โœ… Rainfall sufficient
Apr 1.7" 6.7" 0" โœ… Rainfall sufficient
May 1.7" 10.1" 0" โœ… Rainfall sufficient
Jun 1.7" 9.4" 0" โœ… Rainfall sufficient
Jul 1.7" 9.3" 0" โœ… Rainfall sufficient
Aug 1.7" 8.7" 0" โœ… Rainfall sufficient
Sep 1.7" 6.9" 0" โœ… Rainfall sufficient
Oct 1.7" 4.5" 0" โœ… Rainfall sufficient
Nov 1.7" 2.5" 0" โœ… Rainfall sufficient
Dec 1.7" 1.8" 0" โœ… Rainfall sufficient

Water needs are for active growing months only (Febโ€“Dec in Hidalgo 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 ~1,875 GDD — county provides 7,900 GDD Excellent fit

Chamomile Planting Timeline โ€” Hidalgo County, TX

Chamomile Planting Calendar

Activity When Date Range
Start Indoors January 9 Jan 9 โ€“ Jan 23
Transplant Outdoors January 30 Jan 30 โ€“ Feb 13
Direct Sow January 16 Jan 16 โ€“ Feb 6
Harvest April 3 Apr 3 โ€“ Jun 12
Fall Sowing October 23 Oct 23 โ€“ Nov 6

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 โ€”
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 9b

๐Ÿ“† Growing Season

315 days in Hidalgo County

Growing Tips for Chamomile in Hidalgo County

Direct sow Chamomile outdoors after February 06 in Hidalgo County when soil has warmed and frost danger has passed.

With summer highs reaching 100ยฐF in Hidalgo 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 67" of annual rainfall in Hidalgo 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 Hidalgo County, TX?

Hidalgo County is in Zone 9b with an average last frost of February 6. Plan your Chamomile planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hidalgo County, TX?

Hidalgo County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 6 and first fall frost is December 18.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hidalgo County gardeners in Zone 9b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Hidalgo County, TX. Local conditions may vary. Last updated: April 2026.