When to plant Tomatoes in Sherman County, KS
For Sherman County, gardeners: plant Tomatoes May 9 through May 30 once soil reads 50°F.
When to Plant Tomatoes in Sherman County, KS
Your June game plan for Sherman County, Kansas
We've pulled the most time-sensitive tasks for Sherman County, Kansas this June and put them front and centre. Tackle them in order.
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Fire up the seed-starting tray: tomatoes
A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.
July will be here before you know it — start on
- First harvests: tomatoes
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.
Sherman County, Kansas is in USDA Zone 6a. The average last spring frost is May 2 and the first fall frost is October 11, giving you a growing season of approximately 162 days.
At an elevation of 831 feet, Sherman County receives approximately 24.7 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Tomatoes during the growing season.
Sherman County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.3
Drainage
Well Drained
Tomatoes 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 Sherman County
How your county's soil matches Tomatoes's growing requirements.
Soil pH
Your soil pH (6.7–7.3) overlaps with Tomatoes's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Sherman County is excellent for Tomatoes — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Tomatoes.
Organic Matter
Organic matter is excellent (4.1%) — Tomatoes will thrive.
How to Plant Tomatoes
Succession Planting Tomatoes
Sow every 6.9 weeks. Last sowing by Jul 18 to harvest before frost.
Tomatoes Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Tomatoes
Tomatoes needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.
| Month | Tomatoes Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.9" | 0" | ❄️ Dormant |
| Feb | — | 1.4" | 0" | ❄️ Dormant |
| Mar | — | 2.2" | 0" | ❄️ Dormant |
| Apr | — | 2.3" | 0" | ❄️ Dormant |
| May | 5.2" | 2.7" | 2.5" | 💧 Light watering |
| Jun | 5.2" | 1.8" | 3.4" | 🚿 Regular watering |
| Jul | 5.2" | 2.4" | 2.8" | 🚿 Regular watering |
| Aug | 5.2" | 2.8" | 2.4" | 💧 Light watering |
| Sep | 5.2" | 2.1" | 3.1" | 🚿 Regular watering |
| Oct | 5.2" | 2.1" | 3.1" | 🚿 Regular watering |
| Nov | — | 1.8" | 0" | ❄️ Dormant |
| Dec | — | 1.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Sherman County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Tomatoes 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.
Tomatoes Planting Timeline — Sherman County, KS
Tomatoes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 7 | Mar 7 – Mar 21 |
| Transplant Outdoors | May 16 | May 16 – May 30 |
| Direct Sow | May 9 | May 9 – May 30 |
| Harvest | July 18 | Jul 18 – Sep 26 |
Plant 0.5" deep · 24" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.2"/week · 2-3 times/week
📅 Days to Maturity
60–85 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 6a
📆 Growing Season
162 days in Sherman County
Growing Tips for Tomatoes in Sherman County
Direct sow Tomatoes outdoors after May 02 in Sherman 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.
Sherman County receives only 25" of rain annually. Tomatoes needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
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
Check more plant combinations with our Companion Planting Checker →
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 Sherman County, KS?
Sherman County is in Zone 6a with an average last frost of May 2. Plan your Tomatoes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sherman County, KS?
Sherman County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is May 2 and first fall frost is October 11.
When should I plant Tomatoes in Sherman County, KS?
In Sherman County, KS, plant Tomatoes after the last frost (around May 2) and before the first frost (around October 11). Best results when soil holds above 50°F.
What growing zone is Sherman County, KS for Tomatoes?
Sherman County sits in USDA Zone 6a. Tomatoes grows reliably in zones 3a through 11b, so it's a good fit here.
Can Tomatoes grow in Sherman County's climate?
Yes — Tomatoes grows well in Sherman County's temperate climate. Sherman County averages a 162-day frost-free season, with last frost around May 2 and first frost around October 11.
Your Sherman County Garden Planner — Free
A 22-page printable planner built for Sherman 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.