When to Plant Tomatoes in Saline County, IL
Tomatoes are the most popular home garden crop, available in thousands of varieties from tiny cherries to massive beefsteaks. They are warm-season plants needing full sun.
Saline County, Illinois is in USDA Zone 6b. The average last spring frost is April 8 and the first fall frost is October 24, giving you a growing season of approximately 199 days.
At an elevation of 748 feet, Saline County receives approximately 41.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Tomatoes during the growing season.
Saline County Soil Profile
Soil Type
Silt Loam
Soil pH
6-6.7
Drainage
Well Drained
Plant 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 Saline County
How your county's soil matches Tomatoes's growing requirements.
Soil pH
Your soil pH (6.0–6.7) is within Tomatoes's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Saline County is excellent for Tomatoes — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.9%). Annual compost additions will help Tomatoes.
How to Plant Tomatoes
Succession Planting Tomatoes
Sow every 6.9 weeks. Last sowing by Jul 31 to harvest before frost.
Plant Water Budget
Tomatoes Planting Timeline — Saline County, IL
Tomatoes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 11 | Feb 11 – Feb 25 |
| Transplant Outdoors | April 22 | Apr 22 – May 6 |
| Direct Sow | April 15 | Apr 15 – May 6 |
| Harvest | June 24 | Jun 24 – Sep 2 |
Plant 0.5" deep · 24" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | — |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.2"/week · 1-2 times/week
📅 Days to Maturity
60–85 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 6b
📆 Growing Season
199 days in Saline County
Growing Tips for Tomatoes in Saline County
Direct sow Tomatoes outdoors after April 08 in Saline County when soil has warmed and frost danger has passed.
Common pests for Tomatoes 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. Bury transplants deep to encourage rooting along the stem. Provide consistent moisture to prevent blossom end rot and cracking.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 25 ft between varieties for purity. Use open-pollinated varieties for true-to-type seeds.
Tomatoes in Other Locations
Frequently Asked Questions
When should I plant Tomatoes in Saline County, IL?
Saline County is in Zone 6b with an average last frost of April 8. Plan your Tomatoes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Saline County, IL?
Saline County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 8 and first fall frost is October 24.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Saline County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.
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