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When to Plant Angelica in Coryell County, TX

Coryell County, Texas Zone 8b May

Your May gardening checklist

A quick May briefing for Coryell County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 16
Avg. first frost November 15
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 13.6 hrs

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Angelica is a dramatic biennial herb that can reach 6 feet tall with large compound leaves and globe-shaped flower clusters. All parts are edible with a sweet, celery-like flavor.

Coryell County, Texas is in USDA Zone 8b. The average last spring frost is March 16 and the first fall frost is November 15, giving you a growing season of approximately 244 days.

At an elevation of 3,488 feet, Coryell County receives approximately 65 inches of rainfall annually with predominantly clay soil. Summer highs average 91°F, providing good warmth for Angelica during the growing season. Clay soil retains moisture well for Angelica, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Angelica root diseases.

Coryell County, TX (Zone 8b) Long season
244 days
Last Spring Frost March 16
244 growing days
First Fall Frost November 15

Coryell County Soil Profile

Soil Type

Clay

Soil pH

7-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Start indoors: Jan 29 Transplant: Feb 26
Recommended (50%) ✓ Fits season
Start indoors: Feb 9 Transplant: Mar 9
Safe Start (90%) ✓ Fits season
Start indoors: Mar 6 Transplant: Apr 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 Coryell County

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

Soil pH

Your soil pH (7.0–8.3) is more alkaline than Angelica prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (41% clay) in Coryell County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Angelica.

How to Plant Angelica

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 993 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Angelica

Angelica needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Angelica Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 2.3" 0" ❄️ Dormant
Mar 6.5" 3.8" 2.7" 💧 Light watering
Apr 6.5" 6.9" 0" ✅ Rainfall sufficient
May 6.5" 9.1" 0" ✅ Rainfall sufficient
Jun 6.5" 9.5" 0" ✅ Rainfall sufficient
Jul 6.5" 9" 0" ✅ Rainfall sufficient
Aug 6.5" 7.2" 0" ✅ Rainfall sufficient
Sep 6.5" 7.1" 0" ✅ Rainfall sufficient
Oct 6.5" 4.6" 1.9" 💧 Light watering
Nov 6.5" 2" 4.5" 🚿 Regular watering
Dec 1.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Coryell County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Angelica 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.

Angelica needs ~9,992 GDD — county provides 4,453 GDD May not mature

Angelica Planting Timeline — Coryell County, TX

Angelica Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow March 2 Mar 2 – Mar 23
Fall Sowing September 6 Sep 6 – Sep 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

365–730 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Coryell County

Growing Tips for Angelica in Coryell County

Direct sow Angelica outdoors after March 16 in Coryell County when soil has warmed and frost danger has passed.

With Coryell County's clay soil (41% clay), work in 3-4 inches of compost before planting Angelica. Avoid tilling when soil is wet to prevent compaction.

Your 244.0-day growing season in Coryell County is tight for Angelica (365.0-730.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Angelica in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow fresh seeds in fall for spring germination. Provide rich, moist soil and partial shade. Harvest stems in the second year before flowering for candying or flavoring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Angelica in Coryell County, TX?

Coryell County is in Zone 8b with an average last frost of March 16. Plan your Angelica planting based on this frost date — see the calendar above for exact timing.

What planting zone is Coryell County, TX?

Coryell County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 16 and first fall frost is November 15.

🌱

Your Coryell County Garden Planner — Free

A 24-page printable planner built for Coryell County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Coryell County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.