When to Plant Basil in USDA Zone 11b
Top priorities for Zone 11b gardeners in May
Each item below is timed to Zone 11b's frost dates and soil temperatures. Skip nothing, stress about nothing.
Want it on paper? Download your Zone 11b planting guide →
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.
In Zone 11b, the average last spring frost is around January 1 and the first fall frost is around December 31, giving you a growing season of approximately 364 days.
Basil Planting Timeline — Zone 11b
Where Is USDA Zone 11b?
The map below highlights the states that contain Zone 11b. Click any state to see the Basil planting schedule for that location.
Basil Planting Calendar — Zone 11b
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | November 20 | Nov 20 – Dec 4 |
| Transplant Outdoors | January 8 | Jan 8 – Jan 22 |
| Direct Sow | January 8 | Jan 8 – Jan 29 |
| Harvest | March 5 | Mar 5 – May 7 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Transplant Outdoors Direct Sow |
| February | — |
| March | Harvest |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | Start Indoors |
| December | Start Indoors |
Free Zone 11b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 11b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Moderate — regular watering
Days to Maturity
50–75 days
Soil pH
6 – 7
Zone Temperature Range
°F to °F average annual minimum
Growing Season
364 days (Zone average)
Planting Specifications
| Planting Depth | 0.5 inches |
| Plant Spacing | 8 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Basil in Zone
Sow every 5.7 weeks for continuous harvest throughout the season.
Growing Tips for Basil in Zone
Zone has a short growing season (~364 days). Start Basil indoors early and use season-extension techniques like row covers and cold frames.
Basil needs approximately 0.6 inches of water per week during active growth. Adjust watering based on your local rainfall and soil drainage.
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
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- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
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Saving Basil Seeds
Isolate 150 ft between varieties. Different basil species can cross.
Recommended for Your Garden
Breathable fabric pots that promote healthy root growth and prevent overwatering.
Built-in reservoir keeps herbs and greens consistently watered with less effort.
Start seeds indoors with reusable cell trays and humidity domes.
Related Plants
Basil in Other Zones
Basil by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Basil in Zone 11b?
In Zone 11b, plan your Basil planting around the average last frost date of January 1. Start seeds indoors around November 20. Direct sow outdoors around January 8. Transplant seedlings around January 8.
Can Basil grow in Zone 11b?
Yes, Basil can grow well in Zone 11b, hardy in USDA zones 4a through 11b. Zone 11b has a growing season of approximately 364 days, which is sufficient for Basil (50-75 days to maturity).
When can I harvest Basil in Zone 11b?
In Zone 11b, expect to harvest Basil from March 5 – May 7. Basil takes 50-75 days from planting to harvest.
What is the last frost date for Zone 11b?
The average last spring frost in Zone 11b is around January 1, and the first fall frost is around December 31. This gives a growing season of approximately 364 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Basil?
Good companion plants for Basil include Tomatoes, Peppers, Oregano. These companions can help with pest control, pollination, and nutrient sharing.
Your Free Printable Garden Planner
A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.