When to plant Brussels Sprouts in Franklin County, KS
Plant Brussels Sprouts in Franklin County, when soil hits 50°F — usually March 29. Continue planting through April 19 for the spring crop. A second sowing from August 16 to August 30 extends the harvest into fall.
When to Plant Brussels Sprouts in Franklin County, KS
Your July planting checklist for Franklin County, Kansas
Each item below is timed to Franklin County, Kansas's frost dates and soil temperatures. Skip nothing, stress about nothing.
Brussels sprouts are a cold-hardy brassica that produces miniature cabbage-like heads along a tall stalk. Flavor improves after a light frost.
Franklin County, Kansas is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 25, giving you a growing season of approximately 196 days.
At an elevation of 834 feet, Franklin County receives approximately 24.3 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Brussels Sprouts during the growing season.
Franklin County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.2
Drainage
Well Drained
Brussels Sprouts 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 Franklin County
How your county's soil matches Brussels Sprouts's growing requirements.
Soil pH
Your soil pH (6.3–7.2) is within Brussels Sprouts's preferred range (6.0–7.5).
Soil Texture
The loam soil in Franklin County is excellent for Brussels Sprouts — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.2%) — Brussels Sprouts will thrive.
How to Plant Brussels Sprouts
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Brussels Sprouts Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Brussels Sprouts
Brussels Sprouts needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.
| Month | Brussels Sprouts Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.6" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.3" | 0" | ❄️ Dormant |
| Apr | 3.9" | 2.4" | 1.5" | 💧 Light watering |
| May | 3.9" | 3.6" | 0.3" | 💧 Light watering |
| Jun | 3.9" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 3.3" | 0.6" | 💧 Light watering |
| Aug | 3.9" | 3" | 0.9" | 💧 Light watering |
| Sep | 3.9" | 2.2" | 1.7" | 💧 Light watering |
| Oct | 3.9" | 1.5" | 2.4" | 🚿 Regular watering |
| Nov | — | 0.8" | 0" | ❄️ Dormant |
| Dec | — | 0.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Franklin County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Brussels Sprouts 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.
Brussels Sprouts Planting Timeline — Franklin County, KS
Brussels Sprouts Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 8 | Mar 8 – Mar 22 |
| Transplant Outdoors | April 12 | Apr 12 – Apr 26 |
| Direct Sow | March 29 | Mar 29 – Apr 19 |
| Harvest | July 12 | Jul 12 – Sep 6 |
| Fall Sowing | August 16 | Aug 16 – Aug 30 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · 1-2 times/week
📅 Days to Maturity
90–130 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 6b
📆 Growing Season
196 days in Franklin County
Growing Tips for Brussels Sprouts in Franklin County
Direct sow Brussels Sprouts outdoors after April 12 in Franklin County when soil has warmed and frost danger has passed.
Common pests for Brussels Sprouts in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
Franklin County receives only 24" of rain annually. Brussels Sprouts needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Start seeds indoors 12-14 weeks before first fall frost. Stake tall plants to prevent toppling. Remove lower leaves as sprouts develop to improve air circulation.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Brussels Sprouts in Other Locations
Frequently Asked Questions
When should I plant Brussels Sprouts in Franklin County, KS?
Franklin County is in Zone 6b with an average last frost of April 12. Plan your Brussels Sprouts planting based on this frost date — see the calendar above for exact timing.
What planting zone is Franklin County, KS?
Franklin County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 25.
When should I plant Brussels Sprouts in Franklin County, KS?
In Franklin County, KS, plant Brussels Sprouts after the last frost (around April 12) and before the first frost (around October 25). Best results when soil holds above 50°F.
What growing zone is Franklin County, KS for Brussels Sprouts?
Franklin County sits in USDA Zone 6b. Brussels Sprouts grows reliably in zones 2a through 10b, so it's a good fit here.
Can Brussels Sprouts grow in Franklin County's climate?
Yes — Brussels Sprouts grows well in Franklin County's temperate climate. Franklin County averages a 196-day frost-free season, with last frost around April 12 and first frost around October 25.
Your Franklin County Garden Planner — Free
A 22-page printable planner built for Franklin County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.