When to plant Angelica in LaSalle County County,
Aim to plant Angelica in LaSalle County County on or after April 8; the window stays open through April 29. LaSalle County County's 175-day frost-free season gives you a single solid spring crop with a brief fall option. A second sowing from August 5 to August 19 extends the harvest into fall.
When to Plant Angelica in LaSalle County, IL
Your June planting checklist for LaSalle County, Illinois
Welcome to June in Zone 5b. These are the moves that will have the biggest impact on your growing season.
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.
LaSalle County, Illinois is in USDA Zone 5b. The average last spring frost is April 22 and the first fall frost is October 14, giving you a growing season of approximately 175 days.
At an elevation of 523 feet, LaSalle County receives approximately 39.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Angelica to ensure they mature before fall.
LaSalle County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-6.9
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 LaSalle County
How your county's soil matches Angelica's growing requirements.
Soil pH
Your soil pH (5.7–6.9) is within Angelica's preferred range (5.5–7.0).
Soil Texture
The silt loam soil in LaSalle County is excellent for Angelica — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.6%) — Angelica will thrive.
How to Plant Angelica
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Angelica Water Budget
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 | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 2" | 0" | ❄️ Dormant |
| Mar | — | 2.5" | 0" | ❄️ Dormant |
| Apr | 6.5" | 4.2" | 2.3" | 💧 Light watering |
| May | 6.5" | 4.5" | 2" | 💧 Light watering |
| Jun | 6.5" | 4.9" | 1.6" | 💧 Light watering |
| Jul | 6.5" | 4.2" | 2.3" | 💧 Light watering |
| Aug | 6.5" | 3.7" | 2.8" | 💧 Light watering |
| Sep | 6.5" | 3.4" | 3.1" | 💧 Light watering |
| Oct | 6.5" | 3.7" | 2.8" | 💧 Light watering |
| Nov | — | 2.7" | 0" | ❄️ Dormant |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in LaSalle 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 — LaSalle County, IL
Angelica Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 18 | Mar 18 – Apr 1 |
| Transplant Outdoors | April 15 | Apr 15 – Apr 29 |
| Direct Sow | April 8 | Apr 8 – Apr 29 |
| Fall Sowing | August 5 | Aug 5 – Aug 19 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | — |
| August | Fall Sowing |
| September | — |
| 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: ideal
🗺️ USDA Zone
Zone 5b
📆 Growing Season
175 days in LaSalle County
Growing Tips for Angelica in LaSalle County
Direct sow Angelica outdoors after April 22 in LaSalle County when soil has warmed and frost danger has passed.
Your 175.0-day growing season in LaSalle 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 →
Angelica in Other Locations
Frequently Asked Questions
When should I plant Angelica in LaSalle County, IL?
LaSalle County is in Zone 5b with an average last frost of April 22. Plan your Angelica planting based on this frost date — see the calendar above for exact timing.
What planting zone is LaSalle County, IL?
LaSalle County, Illinois is in USDA Hardiness Zone 5b. The average last spring frost is April 22 and first fall frost is October 14.
When should I plant Angelica in LaSalle County County, ?
In LaSalle County County, , plant Angelica after the last frost (around April 22) and before the first frost (around October 14). Best results when soil holds above 50°F.
What growing zone is LaSalle County County, for Angelica?
LaSalle County County sits in USDA Zone 5b. Angelica grows reliably in zones 3a through 8b, so it's a good fit here.
Can Angelica grow in LaSalle County County's climate?
Yes — Angelica grows well in LaSalle County County's temperate climate. LaSalle County County averages a 175-day frost-free season, with last frost around April 22 and first frost around October 14.
Your LaSalle County Garden Planner — Free
A 22-page printable planner built for LaSalle County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.