When to plant Angelica in Dawson County County,
Dawson County County sits in USDA Zone 4a. Plant Angelica between May 7 (after last frost on May 14) and May 28. A second sowing from June 30 to July 14 extends the harvest into fall.
When to Plant Angelica in Dawson County, MT
What to do in June
June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Dawson County, Montana.
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Get angelica seeds going inside
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
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Direct-sow angelica for cool weather
Your first frost is about 14 weeks away — plenty of time for these to mature.
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.
Dawson 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 6,445 feet, Dawson County receives approximately 21.9 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Angelica to ensure they mature before fall.
Dawson County Soil Profile
Soil Type
Loam
Soil pH
6.8-8.2
Drainage
Well Drained
Angelica Planting Risk Windows
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 Dawson County
How your county's soil matches Angelica's growing requirements.
Soil pH
Your soil pH (6.8–8.2) is more alkaline than Angelica prefers (5.5–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Dawson County is excellent for Angelica — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Angelica is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.
Organic Matter
Organic matter is moderate (2.6%). Annual compost additions will help Angelica.
How to Plant Angelica
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Angelica Water Budget
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 | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 1.3" | 0" | ❄️ Dormant |
| Mar | — | 1.7" | 0" | ❄️ Dormant |
| Apr | — | 2.1" | 0" | ❄️ Dormant |
| May | 6.5" | 2.8" | 3.7" | 🚿 Regular watering |
| Jun | 6.5" | 1.4" | 5.1" | 🚿 Regular watering |
| Jul | 6.5" | 2" | 4.5" | 🚿 Regular watering |
| Aug | 6.5" | 2.1" | 4.4" | 🚿 Regular watering |
| Sep | 6.5" | 2" | 4.5" | 🚿 Regular watering |
| Oct | — | 1.8" | 0" | ❄️ Dormant |
| Nov | — | 1.4" | 0" | ❄️ Dormant |
| Dec | — | 1.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Dawson 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 Planting Timeline — Dawson 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
| Month | Activities |
|---|---|
| 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 Dawson County
Growing Tips for Angelica in Dawson County
Direct sow Angelica outdoors after May 14 in Dawson County when soil has warmed and frost danger has passed.
Your 131.0-day growing season in Dawson 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.
Dawson County receives only 22" 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 →
Angelica in Other Locations
Frequently Asked Questions
When should I plant Angelica in Dawson County, MT?
Dawson 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 Dawson County, MT?
Dawson 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 Dawson County County, ?
In Dawson 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 Dawson County County, for Angelica?
Dawson 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 Dawson County County's climate?
Yes — Angelica grows well in Dawson County County's temperate climate. Dawson County County averages a 131-day frost-free season, with last frost around May 14 and first frost around September 22.
Your Dawson County Garden Planner — Free
A 22-page printable planner built for Dawson 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.