When to plant Tomatillo in Kinderhook, IL
Aim to plant Tomatillo in Kinderhook on or after April 22; the window stays open through May 13. Kinderhook's 184-day frost-free season gives you enough for a full main crop and a short fall succession.
When to Plant Tomatillo in Kinderhook, IL
What to do in June
Your garden in Pike County, Illinois is working on a schedule, even when you're not. Here's where you should be this June.
-
Get tomatillo seeds going inside
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
Coming up in July — start thinking about
- First harvests: tomatillo
Tomatillos are a Mexican staple that produces tart, green fruits enclosed in papery husks. They are essential for salsa verde and green sauces.
Kinderhook, Illinois is in USDA Zone 6a. The average last spring frost is April 15 and the first fall frost is October 16, giving you a growing season of approximately 184 days.
At an elevation of 916 feet, Pike County receives approximately 38.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Tomatillo to ensure they mature before fall.
Kinderhook Soil Profile
Soil Type
Silt Loam
Soil pH
6.1-6.7
Drainage
Well Drained
Tomatillo 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 Kinderhook
How your county's soil matches Tomatillo's growing requirements.
Soil pH
Your soil pH (6.1–6.7) is within Tomatillo's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Pike County is excellent for Tomatillo — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Tomatillo.
Organic Matter
Organic matter is excellent (4.1%) — Tomatillo will thrive.
How to Plant Tomatillo
Succession Planting Tomatillo
Sow every 6.9 weeks. Last sowing by Jul 23 to harvest before frost.
Tomatillo Water Budget
Monthly Watering Guide for Tomatillo
Tomatillo needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.
| Month | Tomatillo Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.7" | 0" | ❄️ Dormant |
| Feb | — | 1.7" | 0" | ❄️ Dormant |
| Mar | — | 2.6" | 0" | ❄️ Dormant |
| Apr | 4.8" | 3.3" | 1.5" | 💧 Light watering |
| May | 4.8" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 4.8" | 4.4" | 0.4" | 💧 Light watering |
| Jul | 4.8" | 4.5" | 0.3" | 💧 Light watering |
| Aug | 4.8" | 4.6" | 0.2" | 💧 Light watering |
| Sep | 4.8" | 3.4" | 1.4" | 💧 Light watering |
| Oct | 4.8" | 2.8" | 2" | 💧 Light watering |
| Nov | — | 2.8" | 0" | ❄️ Dormant |
| Dec | — | 1.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Pike County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Tomatillo 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.
Tomatillo Planting Timeline — Kinderhook, IL
Tomatillo Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 18 | Feb 18 – Mar 4 |
| Transplant Outdoors | April 29 | Apr 29 – May 13 |
| Direct Sow | April 22 | Apr 22 – May 13 |
| Harvest | July 1 | Jul 1 – Sep 9 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.1"/week · 1-2 times/week
📅 Days to Maturity
60–85 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
184 days in Pike County
Growing Tips for Tomatillo in Kinderhook
Direct sow Tomatillo outdoors after April 15 in Pike County when soil has warmed and frost danger has passed.
Common pests for Tomatillo 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. Plant at least two plants for cross-pollination. Harvest when fruits fill the husk and it begins to split.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Tomatillo in Other Locations
When should I plant Tomatillo in Kinderhook, IL?
In Kinderhook, IL, plant Tomatillo after the last frost (around April 15) and before the first frost (around October 16). Best results when soil holds above 50°F.
What growing zone is Kinderhook, IL for Tomatillo?
Kinderhook sits in USDA Zone 6a. Tomatillo grows reliably in zones 4a through 11b, so it's a good fit here.
Can Tomatillo grow in Kinderhook's climate?
Yes — Tomatillo grows well in Kinderhook's temperate climate. Kinderhook averages a 184-day frost-free season, with last frost around April 15 and first frost around October 16.
Your Pike County Garden Planner — Free
A 22-page printable planner built for Pike 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.