Calculate a fall sowing window
Enter a local first expected frost date to count back 10 to 12 weeks.
This uses the date you provide, not a weather forecast. Compare the result with the snap-bush regional dates below.
Planting dates
Use a local expected frost date in the calculator above. It subtracts 84 days and 70 days to show the fall sowing range from Texas A&M’s recommendation. Keep the source of your frost date with your plan so you can revise the calculation if the local guidance changes.
Texas A&M: Easy gardening, green beansYour region
The Texas A&M fall guide lists these average dates for snap bush beans: Region I, July 15; II, August 1; III, September 1; IV, September 10; V, October 1. Check its gardening-region map before choosing a row. These region numbers are not today’s USDA hardiness zones.
Texas A&M: Fall vegetable gardening guideHow to plant
For bush beans, sow about 1 inch deep and thin seedlings to 3 to 4 inches apart. Pole beans need support and a different layout. Read the packet before marking rows, and keep the bush-bean dates separate from recommendations for lima beans or southern peas.
Texas A&M: Easy gardening, green beansCompare the two fall checks
Put the regional average beside your frost-based range. If they disagree, check that you selected snap bush beans and the correct region, then consult a county calendar. Do not average the two dates into a third date that neither source recommends.
Choose your next step
Spring frost is still possible
Keep the seed for the outdoor sowing window. Recheck your local forecast before preparing a sowing day.Fall is approaching
Calculate the 10-to-12-week range, then compare it with the snap-bush regional anchor. Note both on your plan.Your packet says pole beans
Use the green-bean seasonal rule, but confirm variety maturity and support needs. Do not read the snap-bush regional table as a tested pole-bean deadline.Planting questions
Can I use one date for all of Texas?
Use your local frost dates and the source’s regional map. The regional fall anchors span July through October, so a single statewide day would hide a substantial difference.
Texas A&M: Fall vegetable gardening guideIs the regional date the last possible planting day?
No. Table 1 labels these as average planting dates. It does not establish a last safe date for every variety or county.
Texas A&M: Fall vegetable gardening guideWhat should I compare with beans for a fall garden?
Open the Texas fall guide to compare crops and their seasonal requirements before allocating the rest of the bed.