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When to Plant Angelica in Pueblo County, CO

Pueblo County, Colorado Zone 6a May

This month in Pueblo County, Colorado

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost May 7
Avg. first frost October 7
Soil temp (4") 49°F
Watering High
Pest pressure Low
Daylight 14.1 hrs
A few tasks this May that'll pay off in June
  • Starting indoors: angelica

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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.

Pueblo County, Colorado is in USDA Zone 6a. The average last spring frost is May 7 and the first fall frost is October 7, giving you a growing season of approximately 153 days.

At an elevation of 4,607 feet, Pueblo County receives approximately 14.1 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Angelica during the growing season. With low rainfall, drip irrigation is essential for growing Angelica successfully. Mulch heavily to conserve soil moisture.

Pueblo County, CO (Zone 6a) Moderate season
153 days
Last Spring Frost May 7
153 growing days
First Fall Frost October 7
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Pueblo County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Start indoors: Mar 26 Transplant: Apr 23
Recommended (50%) ✓ Fits season
Start indoors: Apr 2 Transplant: Apr 30
Safe Start (90%) ✓ Fits season
Start indoors: Apr 15 Transplant: May 13

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 Pueblo County

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

Soil pH

Your soil pH (6.7–7.9) is more alkaline than Angelica prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Pueblo County is excellent for Angelica — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). 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
0.4″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 1,819 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 1.1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.1" 0" ❄️ Dormant
Apr 1.5" 0" ❄️ Dormant
May 6.5" 1.5" 5" 🚿 Regular watering
Jun 6.5" 1.1" 5.4" 🚿 Regular watering
Jul 6.5" 1.1" 5.4" 🚿 Regular watering
Aug 6.5" 1.6" 4.9" 🚿 Regular watering
Sep 6.5" 1.3" 5.2" 🚿 Regular watering
Oct 6.5" 1.1" 5.4" 🚿 Regular watering
Nov 1.2" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Pueblo 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 ~8,760 GDD — county provides 2,448 GDD May not mature

Angelica Planting Timeline — Pueblo County, CO

Angelica Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 23 Apr 23 – May 14
Fall Sowing July 29 Jul 29 – Aug 12

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

365–730 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

153 days in Pueblo County

Growing Tips for Angelica in Pueblo County

Direct sow Angelica outdoors after May 07 in Pueblo County when soil has warmed and frost danger has passed.

Your 153.0-day growing season in Pueblo 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.

Pueblo County receives only 14" of rain annually. Angelica needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Pueblo County, CO?

Pueblo County is in Zone 6a with an average last frost of May 7. Plan your Angelica planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pueblo County, CO?

Pueblo County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 7 and first fall frost is October 7.

🌱

Your Pueblo County Garden Planner — Free

A 24-page printable planner built for Pueblo County (Zone 6a). 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 Pueblo County, CO. 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.