When to Plant Brussels Sprouts in Macon County, AL
Your May gardening checklist
Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.
Before June arrives, get these ready
- First harvests: brussels sprouts
Brussels sprouts are a cold-hardy brassica that produces miniature cabbage-like heads along a tall stalk. Flavor improves after a light frost.
Macon County, Alabama is in USDA Zone 8b. The average last spring frost is March 25 and the first fall frost is November 6, giving you a growing season of approximately 226 days.
At an elevation of 450 feet, Macon County receives approximately 60 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Brussels Sprouts may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Brussels Sprouts, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Brussels Sprouts root diseases.
Macon County Soil Profile
Soil Type
Clay Loam
Soil pH
5.2-6.3
Drainage
Well Drained
Plant 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 Macon County
How your county's soil matches Brussels Sprouts's growing requirements.
Soil pH
Your soil pH (5.2–6.3) is more acidic than Brussels Sprouts prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Macon County is excellent for Brussels Sprouts — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Brussels Sprouts.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Brussels Sprouts.
How to Plant Brussels Sprouts
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Plant Water Budget
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 | — | 4.3" | 0" | ❄️ Dormant |
| Feb | — | 4.9" | 0" | ❄️ Dormant |
| Mar | 3.9" | 5.8" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 5" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 5.4" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 6.7" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 5.6" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 4.6" | 0" | ✅ Rainfall sufficient |
| Oct | 3.9" | 3.9" | 0" | ✅ Rainfall sufficient |
| Nov | 3.9" | 4.7" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Macon 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 — Macon County, AL
Brussels Sprouts Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 18 | Feb 18 – Mar 4 |
| Transplant Outdoors | March 25 | Mar 25 – Apr 8 |
| Direct Sow | March 11 | Mar 11 – Apr 1 |
| Harvest | June 24 | Jun 24 – Aug 19 |
| Fall Sowing | August 28 | Aug 28 – Sep 11 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Natural rainfall sufficient
📅 Days to Maturity
90–130 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8b
📆 Growing Season
226 days in Macon County
Growing Tips for Brussels Sprouts in Macon County
Direct sow Brussels Sprouts outdoors after March 25 in Macon County when soil has warmed and frost danger has passed.
With Macon County's clay soil (31% clay), work in 3-4 inches of compost before planting Brussels Sprouts. Avoid tilling when soil is wet to prevent compaction.
Summer highs in Macon County reach 96°F — grow Brussels Sprouts as a spring or fall crop. Use shade cloth if planting in summer.
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.
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
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Check more plant combinations with our Companion Planting Checker →
Brussels Sprouts in Other Locations
Frequently Asked Questions
When should I plant Brussels Sprouts in Macon County, AL?
Macon County is in Zone 8b with an average last frost of March 25. Plan your Brussels Sprouts planting based on this frost date — see the calendar above for exact timing.
What planting zone is Macon County, AL?
Macon County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 25 and first fall frost is November 6.
Your Macon County Garden Planner — Free
A 24-page printable planner built for Macon County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.