When to Plant Brussels Sprouts in Broome County, NY
May to-do list for Broome County, New York
May is a pivotal month for Broome County, New York gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Move brussels sprouts into the garden
Your last frost (May 8) has passed. These warm-season crops can handle outdoor soil now.
June will be here before you know it — start on
- Starting indoors: 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.
Broome County, New York is in USDA Zone 6a. The average last spring frost is May 8 and the first fall frost is October 11, giving you a growing season of approximately 156 days.
At an elevation of 802 feet, Broome County receives approximately 46.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Brussels Sprouts to ensure they mature before fall.
Broome County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.6
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 Broome County
How your county's soil matches Brussels Sprouts's growing requirements.
Soil pH
Your soil pH (4.8–6.6) is more acidic than Brussels Sprouts prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Broome County is excellent for Brussels Sprouts — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.2%). 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 | — | 3" | 0" | ❄️ Dormant |
| Feb | — | 3.3" | 0" | ❄️ Dormant |
| Mar | — | 3.5" | 0" | ❄️ Dormant |
| Apr | — | 3.8" | 0" | ❄️ Dormant |
| May | 3.9" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.7" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 4.4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 3.7" | 0.2" | 💧 Light watering |
| Oct | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Nov | — | 3.3" | 0" | ❄️ Dormant |
| Dec | — | 3.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Broome 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 — Broome County, NY
Brussels Sprouts Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 3 | Apr 3 – Apr 17 |
| Transplant Outdoors | May 8 | May 8 – May 22 |
| Direct Sow | April 24 | Apr 24 – May 15 |
| Harvest | August 7 | Aug 7 – Oct 2 |
| Fall Sowing | August 2 | Aug 2 – Aug 16 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | — |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | Harvest |
| 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 6a
📆 Growing Season
156 days in Broome County
Growing Tips for Brussels Sprouts in Broome County
Direct sow Brussels Sprouts outdoors after May 08 in Broome 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.
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 Broome County, NY?
Broome County is in Zone 6a with an average last frost of May 8. Plan your Brussels Sprouts planting based on this frost date — see the calendar above for exact timing.
What planting zone is Broome County, NY?
Broome County, New York is in USDA Hardiness Zone 6a. The average last spring frost is May 8 and first fall frost is October 11.
Your Broome County Garden Planner — Free
A 24-page printable planner built for Broome 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.