When to plant Broccoli in Charles County, MD
For Charles County, gardeners: plant Broccoli March 15 through April 5 once soil reads 50°F. A second sowing from September 5 to September 19 extends the harvest into fall.
When to Plant Broccoli in Charles County, MD
Broccoli is a nutrient-dense cool-season crop that produces large central heads followed by smaller side shoots. It is one of the most popular garden vegetables.
Charles County, Maryland is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 14, giving you a growing season of approximately 230 days.
At an elevation of 382 feet, Charles County receives approximately 38.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Broccoli during the growing season.
Charles County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Broccoli to Grow
For a family of 4, plant approximately 12 broccoli plants in about 24 sq ft. In Charles County's 230-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Broccoli Planting Timeline — Charles County, MD
Broccoli Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 22 | Feb 22 – Mar 8 |
| Transplant Outdoors | March 29 | Mar 29 – Apr 12 |
| Direct Sow | March 15 | Mar 15 – Apr 5 |
| Harvest | May 31 | May 31 – Jul 12 |
| Fall Sowing | September 5 | Sep 5 – Sep 19 |
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 | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 7b
📆 Growing Season
230 days in Charles County
Growing Tips for Charles County
Start seeds indoors 6-8 weeks before last frost. Provide consistent moisture to prevent hollow stems. Harvest heads before yellow flowers appear.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 1/2 mile from other brassicas. Biennial — must overwinter roots.
Broccoli in Other Locations
Frequently Asked Questions
When should I plant Broccoli in Charles County, MD?
Charles County is in Zone 7b with an average last frost of March 29. Plan your Broccoli planting based on this frost date — see the calendar above for exact timing.
What planting zone is Charles County, MD?
Charles County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 14.
When should I plant Broccoli in Charles County, MD?
In Charles County, MD, plant Broccoli after the last frost (around March 29) and before the first frost (around November 14). Best results when soil holds above 50°F.
What growing zone is Charles County, MD for Broccoli?
Charles County sits in USDA Zone 7b. Broccoli grows reliably in zones 2a through 11b, so it's a good fit here.
Can Broccoli grow in Charles County's climate?
Yes — Broccoli grows well in Charles County's temperate climate. Charles County averages a 230-day frost-free season, with last frost around March 29 and first frost around November 14.
Your Charles County Garden Planner — Free
A 22-page printable planner built for Charles County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.