| Planting Dates for the Burpee Garden Sown | ||
| Zone | Average Last Frost Date | Time to sow Burpee Garden Sown Spring |
| 3 | May 20-June 20 | May 20-June 15 |
| 4 | May 15-June 15 | May 15-June 10 |
| 5 | May 1- May 31 | May 1- May 31 |
| 6 | April 20- May 20 | April 25- May 5 |
| 7 | April 25-May 15 | April 20- May 20 |
| 8 | March 15-April 15 | March 10-April 25 |
| 9 | February 15- March 15 | February 10-March 20 |
| 10 | January 15-February 15 | January 15-February 10 |
| 11 | Rarely- January 15 | January 15-February 10 |