🌺 When to Plant Snapdragons
Start early indoors; tolerate light frost. Great cut flower
📅 Planting Calendar by USDA Zone
Snapdragons is a cool-season crop — plant it around your last spring frost, and you can often start it earlier indoors or sow again for a fall harvest. Find the exact start-indoors, transplant, and direct-sow dates for your USDA zone in the table below.
Select your zone to highlight your dates. All dates are calculated from each zone's average frost dates — see how we calculate them.
| Zone | Last Frost | Start Indoors | Transplant | Direct Sow |
|---|---|---|---|---|
| Zone 2A | May 30 | Mar 21 | May 2 | May 16 |
| Zone 3B | May 15 | Mar 6 | Apr 17 | May 1 |
| Zone 4A | May 8 | Feb 27 | Apr 10 | Apr 24 |
| Zone 4B | May 1 | Feb 20 | Apr 3 | Apr 17 |
| Zone 5A | Apr 25 | Feb 14 | Mar 28 | Apr 11 |
| Zone 5B | Apr 18 | Feb 7 | Mar 21 | Apr 4 |
| Zone 6A | Apr 21 | Feb 10 | Mar 24 | Apr 7 |
| Zone 6B | Apr 10 | Jan 30 | Mar 13 | Mar 27 |
| Zone 7A | Apr 5 | Jan 25 | Mar 8 | Mar 22 |
| Zone 7B | Mar 28 | Jan 17 | Feb 28 | Mar 14 |
| Zone 8A | Mar 20 | Jan 9 | Feb 20 | Mar 6 |
| Zone 8B | Mar 12 | Jan 1 | Feb 12 | Feb 26 |
| Zone 9A | Feb 28 | Dec 20 | Jan 31 | Feb 14 |
| Zone 9B | Feb 15 | Dec 7 | Jan 18 | Feb 1 |
| Zone 10A | Feb 1 | Nov 23 | Jan 4 | Jan 18 |
| Zone 10B | Jan 15 | Nov 6 | Dec 18 | Jan 1 |
| Zone 11A | Jan 1 | Oct 23 | Dec 4 | Dec 18 |
Snapdragons are cool-season workhorses that bloom prolifically in spring and fall.
Top Growing Tips
- Start indoors 8-10 weeks before last frost for earliest blooms
- Pinch growing tips when 3-4 inches tall to encourage branching
- Come in every color except blue — great for cutting gardens
- Often survive mild winters and return as short-lived perennials in zones 7+
- Deadhead regularly for continuous blooming
Companion Planting
Good companions: other cool-season flowers and vegetables
Avoid planting near: none in particular
Harvest Timeline
Flowering in 70-80 days from seed; excellent cut flowers
Growing snapdragons in your region?
These dates come from your zone's frost windows. For the full month-by-month plan — succession sowing, variety picks, and timing tuned to your climate, not just your zone — our regional vegetable-gardening guides cover your area start to finish.
Find your regional growing guide