When to plant Bachelor's Button in Nemaha County, KS
Spring Bachelor's Button in Nemaha County goes in March 26–April 16, once nighttime temps stop dipping near freezing. A second sowing from August 29 to September 12 extends the harvest into fall.
When to Plant Bachelor's Button in Nemaha County, KS
July to-do list for Nemaha County, Kansas
Your Nemaha County, Kansas garden is entering a new phase. Here's what's on the schedule for July and why each task matters now.
Bachelor's Button (Centaurea cyanus), also called cornflower, is a carefree cool-season annual best known for its vivid cobalt-blue flowers — one of the truest blues in the annual garden. It tolerates light frosts, self-seeds prolifically, and thrives in poor to average soils. A traditional cut flower and pollinator magnet, it has been cultivated in gardens for centuries.
Nemaha County, Kansas is in USDA Zone 6a. The average last spring frost is April 23 and the first fall frost is October 10, giving you a growing season of approximately 170 days.
At an elevation of 665 feet, Nemaha County receives approximately 21.7 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Bachelor's Button during the growing season.
Nemaha County Soil Profile
Soil Type
Loam
Soil pH
6.6-7.4
Drainage
Well Drained
Bachelor's Button 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 Nemaha County
How your county's soil matches Bachelor's Button's growing requirements.
Soil pH
Your soil pH (6.6–7.4) is within Bachelor's Button's preferred range (6.0–7.5).
Soil Texture
The loam soil in Nemaha County is excellent for Bachelor's Button — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.3%). Annual compost additions will help Bachelor's Button.
How to Plant Bachelor's Button
Fall planting: Sow 6 weeks before your first frost date for a fall harvest.
Succession Planting Bachelor's Button
Sow every 6.9 weeks. Last sowing by Jul 12 to harvest before frost.
For a dedicated fall crop, sow by Aug 29.
Bachelor's Button Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Bachelor's Button
Bachelor's Button needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Bachelor's Button Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.6" | 0" | ❄️ Dormant |
| Feb | — | 0.7" | 0" | ❄️ Dormant |
| Mar | — | 1.5" | 0" | ❄️ Dormant |
| Apr | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 3.4" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 2.2" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 1.2" | 1" | 💧 Light watering |
| Nov | — | 0.8" | 0" | ❄️ Dormant |
| Dec | — | 0.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Nemaha County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Bachelor's Button 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.
Bachelor's Button Planting Timeline — Nemaha County, KS
Bachelor's Button Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | April 23 | Apr 23 – May 7 |
| Direct Sow | March 26 | Mar 26 – Apr 16 |
| Bloom | June 25 | Jun 25 – Sep 10 |
| Fall Sowing | August 29 | Aug 29 – Sep 12 |
Plant 0.3" deep · 12" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | Bloom |
| July | Bloom |
| August | Fall Sowing Bloom |
| September | Fall Sowing Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
170 days in Nemaha County
Growing Tips for Bachelor's Button in Nemaha County
Direct sow Bachelor's Button outdoors after April 23 in Nemaha County when soil has warmed and frost danger has passed.
Common pests for Bachelor's Button in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
Nemaha County receives only 22" of rain annually. Bachelor's Button needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Direct-sow in early spring as soon as soil can be worked; seeds need a brief cold period for best germination (refrigerate for a few days before planting if spring arrives quickly). In zones 6+, fall-sow for the earliest spring bloom. Thin to 12 inches; do not over-fertilize — too much nitrogen produces foliage at the expense of flowers. Deadhead to prolong blooming or allow self-seeding for a naturalized colony.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Bachelor's Button in Other Locations
Frequently Asked Questions
When should I plant Bachelor's Button in Nemaha County, KS?
Nemaha County is in Zone 6a with an average last frost of April 23. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.
What planting zone is Nemaha County, KS?
Nemaha County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 23 and first fall frost is October 10.
When should I plant Bachelor's Button in Nemaha County, KS?
In Nemaha County, KS, plant Bachelor's Button after the last frost (around April 23) and before the first frost (around October 10). Best results when soil holds above 50°F.
What growing zone is Nemaha County, KS for Bachelor's Button?
Nemaha County sits in USDA Zone 6a. Bachelor's Button grows reliably in zones 2a through 11b, so it's a good fit here.
Can Bachelor's Button grow in Nemaha County's climate?
Yes — Bachelor's Button grows well in Nemaha County's temperate climate. Nemaha County averages a 170-day frost-free season, with last frost around April 23 and first frost around October 10.
Your Nemaha County Garden Planner — Free
A 22-page printable planner built for Nemaha 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.