When to plant Black Beans in Thomas County, KS
Thomas County gardeners should plant Black Beans between May 7 and May 28 in spring. With Thomas County's Zone 6a climate (last frost April 30), Black Beans needs 90–120 days to mature — plant by June 14 for a full harvest.
When to Plant Black Beans in Thomas County, KS
Your July gardening checklist
A quick July briefing for Thomas County, Kansas gardeners — what's urgent, what's next, and what can wait.
Black beans are a warm-season legume producing small, dark, protein-rich beans that are a staple in Latin American and Caribbean cuisines.
Thomas County, Kansas is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 12, giving you a growing season of approximately 165 days.
At an elevation of 810 feet, Thomas County receives approximately 26.4 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Black Beans during the growing season.
Thomas County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.5
Drainage
Well Drained
Black Beans 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 Thomas County
How your county's soil matches Black Beans's growing requirements.
Soil pH
Your soil pH (6.8–7.5) is within Black Beans's preferred range (6.0–7.5).
Soil Texture
The loam soil in Thomas County is excellent for Black Beans — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.1%) — Black Beans will thrive.
How to Plant Black Beans
Black Beans Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Black Beans
Black Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Black Beans Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.1" | 0" | ❄️ Dormant |
| Feb | — | 1.4" | 0" | ❄️ Dormant |
| Mar | — | 2.2" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| May | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Jun | 4.3" | 2" | 2.3" | 🚿 Regular watering |
| Jul | 4.3" | 2.3" | 2" | 💧 Light watering |
| Aug | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| Sep | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Oct | 4.3" | 2.3" | 2" | 💧 Light watering |
| Nov | — | 1.7" | 0" | ❄️ Dormant |
| Dec | — | 1.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Thomas County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Black Beans 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.
Black Beans Planting Timeline — Thomas County, KS
Black Beans Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 7 | May 7 – May 28 |
| Harvest | August 6 | Aug 6 – Sep 24 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
165 days in Thomas County
Growing Tips for Black Beans in Thomas County
Direct sow Black Beans outdoors after April 30 in Thomas County when soil has warmed and frost danger has passed.
Common pests for Black Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow after last frost. Provide support for climbing varieties. Allow pods to dry fully on the vine before harvesting. Thresh dried pods by hand or in a pillowcase.
Companion Planting
Good Companions
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Black Beans in Other Locations
Frequently Asked Questions
When should I plant Black Beans in Thomas County, KS?
Thomas County is in Zone 6a with an average last frost of April 30. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.
What planting zone is Thomas County, KS?
Thomas County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 12.
When should I plant Black Beans in Thomas County, KS?
In Thomas County, KS, plant Black Beans after the last frost (around April 30) and before the first frost (around October 12). Best results when soil holds above 50°F.
What growing zone is Thomas County, KS for Black Beans?
Thomas County sits in USDA Zone 6a. Black Beans grows reliably in zones 3a through 11b, so it's a good fit here.
Can Black Beans grow in Thomas County's climate?
Yes — Black Beans grows well in Thomas County's temperate climate. Thomas County averages a 165-day frost-free season, with last frost around April 30 and first frost around October 12.
Your Thomas County Garden Planner — Free
A 22-page printable planner built for Thomas 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.