When to Plant Marigolds in USDA Zone 2b
Your May gardening checklist
We've pulled the most time-sensitive tasks for Zone 2b this May and put them front and centre. Tackle them in order.
Want it on paper? Download your Zone 2b planting guide →Marigolds (Tagetes patula) are warm-season annuals beloved for their cheerful orange, yellow, and red blooms — and for their well-documented ability to repel pest nematodes in vegetable beds. Easy from seed, drought-tolerant once established, and bloom from early summer until the first hard frost.
In Zone 2b, the average last spring frost is around May 22 and the first fall frost is around September 10, giving you a growing season of approximately 111 days.
Marigolds Planting Timeline — Zone 2b
Where Is USDA Zone 2b?
The map below highlights the states that contain Zone 2b. Click any state to see the Marigolds planting schedule for that location.
Marigolds Planting Calendar — Zone 2b
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | July 10 | Jul 10 – Jul 24 |
| Transplant Outdoors | June 12 | Jun 12 – Jun 26 |
| Direct Sow | June 12 | Jun 12 – Jul 3 |
| Harvest | August 7 | Aug 7 – Oct 9 |
Plant 0.3" deep · 10" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors Direct Sow |
| July | Start Indoors Direct Sow |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Free Zone 2b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 2b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
Days to Maturity
50–70 days
Soil pH
6 – 7.5
Zone Temperature Range
°F to °F average annual minimum
Growing Season
111 days (Zone average)
Planting Specifications
| Planting Depth | 0.3 inches |
| Plant Spacing | 10 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Marigolds in Zone
Sow every 5.7 weeks for continuous harvest throughout the season.
Growing Tips for Marigolds in Zone
Zone has a short growing season (~111 days). Start Marigolds indoors early and use season-extension techniques like row covers and cold frames.
Direct-sow after last frost or start indoors 4-6 weeks earlier. Deadhead spent blooms to keep new flowers coming. French marigolds (T. patula) are the most reliable nematode repellents — plant a band around vegetable beds. Tolerate poor soil but bloom best with monthly compost.
Companion Planting
Good Companions
Avoid Planting Near
The Gardener's Encyclopedia to Companion Planting
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
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Saving Marigolds Seeds
Very easy to save. Seeds are the long, thin, dark pieces inside the dried flower head.
Recommended for Your Garden
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Keep your garden organized with durable, weather-resistant plant labels.
Related Plants
Marigolds in Other Zones
Marigolds 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 Marigolds in Zone 2b?
In Zone 2b, plan your Marigolds planting around the average last frost date of May 22. Start seeds indoors around July 10. Direct sow outdoors around June 12. Transplant seedlings around June 12.
Can Marigolds grow in Zone 2b?
Yes, Marigolds can grow well in Zone 2b, hardy in USDA zones 2a through 11b. Zone 2b has a growing season of approximately 111 days, which is sufficient for Marigolds (50-70 days to maturity).
When can I harvest Marigolds in Zone 2b?
In Zone 2b, expect to harvest Marigolds from August 7 – October 9. Marigolds takes 50-70 days from planting to harvest.
What is the last frost date for Zone 2b?
The average last spring frost in Zone 2b is around May 22, and the first fall frost is around September 10. This gives a growing season of approximately 111 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Marigolds?
Good companion plants for Marigolds include Tomatoes, Peppers, Basil, Squash. 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.