When to Plant Basil in Cumberland County, ME
Basil is a fragrant warm-season herb essential to Italian and Thai cuisines. It comes in many varieties including sweet, Thai, purple, and lemon types.
Cumberland County, Maine is in USDA Zone 5b. The average last spring frost is April 29 and the first fall frost is October 13, giving you a growing season of approximately 167 days.
At an elevation of 405 feet, Cumberland County receives approximately 42.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Basil during the growing season.
Cumberland County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.7
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 Cumberland County
How your county's soil matches Basil's growing requirements.
Soil pH
Your soil pH (4.8–6.7) is more acidic than Basil prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Cumberland County is excellent for Basil — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.4%). Annual compost additions will help Basil.
How to Plant Basil
Succession Planting Basil
Sow every 5.7 weeks. Last sowing by Jul 30 to harvest before frost.
Plant Water Budget
Basil Planting Timeline — Cumberland County, ME
Basil Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 11 | Mar 11 – Mar 25 |
| Transplant Outdoors | May 13 | May 13 – May 27 |
| Direct Sow | May 6 | May 6 – May 27 |
| Harvest | July 8 | Jul 8 – Sep 9 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Natural rainfall sufficient
📅 Days to Maturity
50–75 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 5b
📆 Growing Season
167 days in Cumberland County
Growing Tips for Basil in Cumberland County
Direct sow Basil outdoors after April 29 in Cumberland County when soil has warmed and frost danger has passed.
General growing tips
Start seeds indoors or direct sow after last frost. Pinch flower buds to extend leaf production. Harvest leaves from the top down, cutting just above a leaf pair.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 150 ft between varieties. Different basil species can cross.
Basil in Other Locations
Frequently Asked Questions
When should I plant Basil in Cumberland County, ME?
Cumberland County is in Zone 5b with an average last frost of April 29. Plan your Basil planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cumberland County, ME?
Cumberland County, Maine is in USDA Hardiness Zone 5b. The average last spring frost is April 29 and first fall frost is October 13.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Cumberland County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
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