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When to plant Angelica in Wibaux County County,

For Wibaux County County, gardeners: plant Angelica May 7 through May 28 once soil reads 50°F. A second sowing from June 30 to July 14 extends the harvest into fall.

When to Plant Angelica in Wibaux County, MT

Wibaux County, Montana Zone 4a June

Your June game plan for Wibaux County, Montana

Your garden in Wibaux County, Montana is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost May 14
Avg. first frost September 22
Soil temp (4") 43°F
Watering Critical
Pest pressure High
Daylight 15.7 hrs
  1. Begin indoor sowing: angelica

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  2. Start your fall crops: angelica

    Fall crops get sweeter with a light frost. Don't be afraid of cool nights.

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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.

Wibaux County, Montana is in USDA Zone 4a. The average last spring frost is May 14 and the first fall frost is September 22, giving you a growing season of approximately 131 days.

At an elevation of 7,076 feet, Wibaux County receives approximately 15.4 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Angelica to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Angelica successfully. Mulch heavily to conserve soil moisture.

Wibaux County, MT (Zone 4a) Short season
131 days
Last Spring Frost May 14
131 growing days
First Fall Frost September 22

Wibaux County Soil Profile

Soil Type

Loam

Soil pH

6.5-8.3

Drainage

Well Drained

Angelica Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Start indoors: Mar 29 Transplant: May 3
Recommended (50%) ✓ Fits season
Start indoors: Apr 2 Transplant: May 7
Safe Start (90%) ✓ Fits season
Start indoors: Apr 15 Transplant: May 20

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 Wibaux County

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

Soil pH

Your soil pH (6.5–8.3) is more alkaline than Angelica prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Angelica.

How to Plant Angelica

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

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Angelica Water Budget

Plant needs
1.5″/week
Rainfall provides
0.5″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 1,408 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 1.1" 0" ❄️ Dormant
Feb 1" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 1.7" 0" ❄️ Dormant
May 6.5" 1.6" 4.9" 🚿 Regular watering
Jun 6.5" 1.1" 5.4" 🚿 Regular watering
Jul 6.5" 1.6" 4.9" 🚿 Regular watering
Aug 6.5" 1.4" 5.1" 🚿 Regular watering
Sep 6.5" 1.3" 5.2" 🚿 Regular watering
Oct 1.3" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Wibaux 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 ~6,296 GDD — county provides 1,506 GDD May not mature

Angelica Planting Timeline — Wibaux County, MT

Angelica Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors May 7 May 7 – May 21
Direct Sow May 7 May 7 – May 28
Fall Sowing June 30 Jun 30 – Jul 14

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

Month-by-Month Timeline

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

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 4a

📆 Growing Season

131 days in Wibaux County

Growing Tips for Angelica in Wibaux County

Direct sow Angelica outdoors after May 14 in Wibaux County when soil has warmed and frost danger has passed.

Your 131.0-day growing season in Wibaux 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.

Wibaux County receives only 15" 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 Wibaux County, MT?

Wibaux County is in Zone 4a with an average last frost of May 14. Plan your Angelica planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wibaux County, MT?

Wibaux County, Montana is in USDA Hardiness Zone 4a. The average last spring frost is May 14 and first fall frost is September 22.

When should I plant Angelica in Wibaux County County, ?

In Wibaux County County, , plant Angelica after the last frost (around May 14) and before the first frost (around September 22). Best results when soil holds above 50°F.

What growing zone is Wibaux County County, for Angelica?

Wibaux County County sits in USDA Zone 4a. Angelica grows reliably in zones 3a through 8b, so it's a good fit here.

Can Angelica grow in Wibaux County County's climate?

Yes — Angelica grows well in Wibaux County County's temperate climate. Wibaux County County averages a 131-day frost-free season, with last frost around May 14 and first frost around September 22.

🌱

Your Wibaux County Garden Planner — Free

A 22-page printable planner built for Wibaux County (Zone 4a). 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 Wibaux County, MT. Local conditions may vary. Last updated: June 2026.

Sources & credits

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