When to plant Bachelor's Button in Hendricks County County,
Plant Bachelor's Button in Hendricks County County from March 19 to April 9 in spring. Hendricks County County sits in USDA Zone 6a, with last frost around April 16 and first frost on October 19. A second sowing from September 7 to September 21 extends the harvest into fall.
When to Plant Bachelor's Button in Hendricks County, IN
June in the garden — Hendricks County, Indiana
We've pulled the most time-sensitive tasks for Hendricks County, Indiana this June and put them front and centre. Tackle them in order.
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Harvest bachelor's button as they ripen
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
To set up a strong July, finish these tasks
- First harvests: bachelor's button
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.
Hendricks County, Indiana is in USDA Zone 6a. The average last spring frost is April 16 and the first fall frost is October 19, giving you a growing season of approximately 186 days.
At an elevation of 1,286 feet, Hendricks County receives approximately 32.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Bachelor's Button during the growing season.
Hendricks County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7.2
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 Hendricks County
How your county's soil matches Bachelor's Button's growing requirements.
Soil pH
Your soil pH (6.2–7.2) is within Bachelor's Button's preferred range (6.0–7.5).
Soil Texture
The silt loam soil in Hendricks County is excellent for Bachelor's Button — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (5.2%) — Bachelor's Button will thrive.
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 21 to harvest before frost.
For a dedicated fall crop, sow by Sep 07.
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 | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.3" | 0" | ❄️ Dormant |
| Mar | — | 2.3" | 0" | ❄️ Dormant |
| Apr | 2.2" | 3" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 1.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Hendricks 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 — Hendricks County, IN
Bachelor's Button Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 5 | Mar 5 – Mar 19 |
| Transplant Outdoors | April 16 | Apr 16 – Apr 30 |
| Direct Sow | March 19 | Mar 19 – Apr 9 |
| Bloom | June 18 | Jun 18 – Sep 3 |
| Fall Sowing | September 7 | Sep 7 – Sep 21 |
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 | — |
| June | Bloom |
| July | Bloom |
| August | 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
186 days in Hendricks County
Growing Tips for Bachelor's Button in Hendricks County
Direct sow Bachelor's Button outdoors after April 16 in Hendricks 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.
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 Hendricks County, IN?
Hendricks County is in Zone 6a with an average last frost of April 16. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hendricks County, IN?
Hendricks County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 16 and first fall frost is October 19.
When should I plant Bachelor's Button in Hendricks County County, ?
In Hendricks County County, , plant Bachelor's Button after the last frost (around April 16) and before the first frost (around October 19). Best results when soil holds above 50°F.
What growing zone is Hendricks County County, for Bachelor's Button?
Hendricks County 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 Hendricks County County's climate?
Yes — Bachelor's Button grows well in Hendricks County County's temperate climate. Hendricks County County averages a 186-day frost-free season, with last frost around April 16 and first frost around October 19.
Your Hendricks County Garden Planner — Free
A 22-page printable planner built for Hendricks 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.