When to Plant Snapdragon in USDA Zone 8b
Your June gardening checklist
Each item below is timed to Zone 8b's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Basket week: snapdragon
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
A few tasks this June that'll pay off in July
- First harvests: snapdragon
Snapdragons (Antirrhinum majus) are classic cool-season annuals whose upright spikes of dragon-lipped flowers are among spring's most dramatic displays. Tolerating light frosts, they bloom from early spring until summer heat shuts them down — then often revive in fall. In zones 9-11 they are grown as fall-planted winter annuals and may re-seed to naturalize.
In Zone 8b, the average last spring frost is around February 25 and the first fall frost is around November 28, giving you a growing season of approximately 276 days.
Snapdragon Planting Timeline — Zone 8b
Where Is USDA Zone 8b?
The map below highlights the states that contain Zone 8b. Click any state to see the Snapdragon planting schedule for that location.
Snapdragon Planting Calendar — Zone 8b
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | December 17 | Dec 17 – Dec 31 |
| Transplant Outdoors | February 4 | Feb 4 – Feb 18 |
| Direct Sow | January 14 | Jan 14 – Feb 4 |
| Bloom | April 15 | Apr 15 – Aug 19 |
| Fall Sowing | September 19 | Sep 19 – Oct 3 |
· 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | Bloom |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Fall Sowing |
| October | Fall Sowing |
| November | — |
| December | Start Indoors |
Free Zone 8b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 8b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
Days to Maturity
70–100 days
Soil pH
6.2 – 7
Zone Temperature Range
15°F to 20°F average annual minimum
Growing Season
276 days (Zone 8b average)
Planting Specifications
| Plant Spacing | 9 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Snapdragon in Zone 8b
Sow every 8 weeks for continuous harvest throughout the season.
Growing Tips for Snapdragon in Zone 8b
Start indoors 10-12 weeks before last frost; seeds need light to germinate — press into moist medium and do not cover. Transplant after hardening off, even if light frosts remain. Pinch seedlings once to encourage branching. Deadhead to prolong blooming. In zones 8-11, sow in fall for a winter-to-spring show. Tall varieties (24-36") make excellent cut flowers.
Companion Planting
Good Companions
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 Snapdragon Seeds
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
Snapdragon in Other Zones
Snapdragon 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 Snapdragon in Zone 8b?
In Zone 8b, plan your Snapdragon planting around the average last frost date of February 25. Start seeds indoors around December 17. Direct sow outdoors around January 14. Transplant seedlings around February 4.
Can Snapdragon grow in Zone 8b?
Yes, Snapdragon can grow well in Zone 8b, hardy in USDA zones 2a through 11b. Zone 8b has a growing season of approximately 276 days, which is sufficient for Snapdragon (70-100 days to maturity).
When can I harvest Snapdragon in Zone 8b?
In Zone 8b, expect to harvest Snapdragon from April 15 – August 19. Snapdragon takes 70-100 days from planting to harvest.
What is the last frost date for Zone 8b?
The average last spring frost in Zone 8b is around February 25, and the first fall frost is around November 28. This gives a growing season of approximately 276 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Snapdragon?
Good companion plants for Snapdragon include Lettuce, Carrots, Sweet Alyssum, Lobelia. These companions can help with pest control, pollination, and nutrient sharing.
Your Zone 8b Garden Planner — Free
A 22-page printable planner tailored to Zone 8b. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.