When to Plant Lemon Thyme in USDA Zone 9a
What to do in May
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Zone 9a.
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Harvest lemon thyme as they ripen
If you can't use it all right away, check the food-preservation section of your planner.
June will be here before you know it — start on
- First harvests: lemon thyme
Lemon thyme is a low-growing perennial herb with tiny, citrus-scented leaves. It combines the savory quality of thyme with a bright lemon flavor, excellent with fish and poultry.
In Zone 9a, the average last spring frost is around February 10 and the first fall frost is around December 10, giving you a growing season of approximately 303 days.
Lemon Thyme Planting Timeline — Zone 9a
Where Is USDA Zone 9a?
The map below highlights the states that contain Zone 9a. Click any state to see the Lemon Thyme planting schedule for that location.
Lemon Thyme Planting Calendar — Zone 9a
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | February 17 | Feb 17 – Mar 3 |
| Harvest | April 28 | Apr 28 – Jun 30 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Transplant Outdoors |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Free Zone 9a Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 9a with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
Days to Maturity
70–90 days
Soil pH
6 – 8
Zone Temperature Range
°F to °F average annual minimum
Growing Season
303 days (Zone average)
Planting Specifications
| Planting Depth | 0.5 inches |
| Plant Spacing | 8 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Lemon Thyme in Zone
Sow every 8 weeks for continuous harvest throughout the season.
Growing Tips for Lemon Thyme in Zone
Zone has a short growing season (~303 days). Start Lemon Thyme indoors early and use season-extension techniques like row covers and cold frames.
Start from cuttings or divisions. Plant in well-drained soil. Trim back after flowering. Use as a fragrant ground cover or edging plant along garden paths.
Companion Planting
Good Companions
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The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
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Saving Lemon Thyme Seeds
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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
Lemon Thyme in Other Zones
Lemon Thyme 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 Lemon Thyme in Zone 9a?
In Zone 9a, plan your Lemon Thyme planting around the average last frost date of February 10. Transplant seedlings around February 17.
Can Lemon Thyme grow in Zone 9a?
Yes, Lemon Thyme can grow well in Zone 9a, hardy in USDA zones 5a through 9b. Zone 9a has a growing season of approximately 303 days, which is sufficient for Lemon Thyme (70-90 days to maturity).
When can I harvest Lemon Thyme in Zone 9a?
In Zone 9a, expect to harvest Lemon Thyme from April 28 – June 30. Lemon Thyme takes 70-90 days from planting to harvest.
What is the last frost date for Zone 9a?
The average last spring frost in Zone 9a is around February 10, and the first fall frost is around December 10. This gives a growing season of approximately 303 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Lemon Thyme?
Good companion plants for Lemon Thyme include Tomatoes, Eggplant, Rosemary. 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.