When to plant Bachelor's Button in Hampton, FL
Plant Bachelor's Button in Hampton from January 4 to January 25 in spring. Hampton sits in USDA Zone 9a, with last frost around March 1 and first frost on November 28. A second sowing from September 19 to October 3 extends the harvest into fall.
When to Plant Bachelor's Button in Hampton, FL
August in Bradford County, Florida — your action list
Each item below is timed to Bradford County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.
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.
Hampton, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 28, giving you a growing season of approximately 272 days.
At an elevation of 297 feet, Bradford County receives approximately 51.9 inches of rainfall annually with predominantly sand soil. Summer highs average 98°F, so Bachelor's Button may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Bachelor's Button will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bachelor's Button root diseases.
Hampton Soil Profile
Soil Type
Sand
Soil pH
4.9-6.1
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 Hampton
How your county's soil matches Bachelor's Button's growing requirements.
Soil pH
Your soil pH (4.9–6.1) is more acidic than Bachelor's Button prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Bradford County warms quickly in spring but drains fast. Bachelor's Button will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Bachelor's Button.
Organic Matter
Organic matter is low (1.7%). Add 2-3 inches of compost before planting Bachelor's Button.
How to Plant Bachelor's Button
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Bachelor's Button
Sow every 6.9 weeks. Last sowing by Aug 30 to harvest before frost.
For a dedicated fall crop, sow by Sep 19.
Bachelor's Button Water Budget
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 | — | 2.3" | 0" | ❄️ Dormant |
| Feb | — | 2.5" | 0" | ❄️ Dormant |
| Mar | 2.2" | 3.3" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 6.9" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 8.7" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 7.1" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 6.9" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.1" | 0.1" | 💧 Light watering |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Bradford 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 — Hampton, FL
Bachelor's Button Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | February 1 | Feb 1 – Feb 15 |
| Direct Sow | January 4 | Jan 4 – Jan 25 |
| Bloom | March 29 | Mar 29 – Jul 19 |
| Fall Sowing | September 19 | Sep 19 – Oct 3 |
Plant 0.3" deep · 12" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Transplant Outdoors |
| March | Bloom |
| April | Bloom |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | — |
| September | Fall Sowing |
| October | Fall Sowing |
| 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: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
272 days in Bradford County
Growing Tips for Bachelor's Button in Hampton
Direct sow Bachelor's Button outdoors after March 01 in Bradford County when soil has warmed and frost danger has passed.
Sandy soil in Bradford County dries quickly — mulch Bachelor's Button with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 98°F in Bradford County, provide afternoon shade for Bachelor's Button and water deeply in the morning.
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
When should I plant Bachelor's Button in Hampton, FL?
In Hampton, FL, plant Bachelor's Button after the last frost (around March 1) and before the first frost (around November 28). Best results when soil holds above 50°F.
What growing zone is Hampton, FL for Bachelor's Button?
Hampton sits in USDA Zone 9a. Bachelor's Button grows reliably in zones 2a through 11b, so it's a good fit here.
Can Bachelor's Button grow in Hampton's climate?
Yes — Bachelor's Button grows well in Hampton's temperate climate. Hampton averages a 272-day frost-free season, with last frost around March 1 and first frost around November 28.
Your Bradford County Garden Planner — Free
A 22-page printable planner built for Bradford County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.