When to plant Ground Cherry in Algonquin, IL
In Algonquin, Ground Cherry is a spring-only crop. Plant May 9–May 23 once soil hits 50°F.
When to Plant Ground Cherry in Algonquin, IL
This month in McHenry County, Illinois
Here's what deserves your attention in McHenry County, Illinois this month. Everything below is tailored to Zone 5b and timed around your local frost dates.
Ground cherries produce small, sweet, tropical-tasting berries enclosed in papery husks. They are related to tomatillos and cape gooseberries and self-sow readily.
Algonquin, Illinois is in USDA Zone 5b. The average last spring frost is April 18 and the first fall frost is October 20, giving you a growing season of approximately 185 days.
At an elevation of 640 feet, McHenry County receives approximately 39.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Ground Cherry to ensure they mature before fall.
Algonquin Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-6.7
Drainage
Well Drained
Ground Cherry 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 Algonquin
How your county's soil matches Ground Cherry's growing requirements.
Soil pH
Your soil pH (5.9–6.7) overlaps with Ground Cherry's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in McHenry County is excellent for Ground Cherry — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.1%) — Ground Cherry will thrive.
How to Plant Ground Cherry
Succession Planting Ground Cherry
Sow every 7.4 weeks. Last sowing by Aug 01 to harvest before frost.
Ground Cherry Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Ground Cherry
Ground Cherry needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Ground Cherry Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 2.5" | 0" | ❄️ Dormant |
| Apr | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| May | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Jun | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 4.1" | 0.2" | 💧 Light watering |
| Aug | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.3" | 1" | 💧 Light watering |
| Oct | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Nov | — | 2.7" | 0" | ❄️ Dormant |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in McHenry County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Ground Cherry 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.
Ground Cherry Planting Timeline — Algonquin, IL
Ground Cherry Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 9 | May 9 – May 23 |
| Harvest | July 18 | Jul 18 – Sep 12 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
65–80 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5b
📆 Growing Season
185 days in McHenry County
Growing Tips for Ground Cherry in Algonquin
Direct sow Ground Cherry outdoors after April 18 in McHenry County when soil has warmed and frost danger has passed.
Common pests for Ground Cherry in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 6-8 weeks before last frost. Let fruits fall to the ground naturally when ripe inside their husks. The husk turns brown and papery when the fruit is ready.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Ground Cherry in Other Locations
When should I plant Ground Cherry in Algonquin, IL?
In Algonquin, IL, plant Ground Cherry after the last frost (around April 18) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Algonquin, IL for Ground Cherry?
Algonquin sits in USDA Zone 5b. Ground Cherry grows reliably in zones 4a through 11b, so it's a good fit here.
Can Ground Cherry grow in Algonquin's climate?
Yes — Ground Cherry grows well in Algonquin's temperate climate. Algonquin averages a 185-day frost-free season, with last frost around April 18 and first frost around October 20.
Your McHenry County Garden Planner — Free
A 22-page printable planner built for McHenry 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.