Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Austin you will be able to figure out when it's the best time to plant bachelor buttons.

Planting Calendar for Bachelor Buttons

Frost tolerance for bachelor buttons:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Bachelor Buttons do well in moderate cold which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant bachelor buttons in Austin is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bachelor buttons and expect a good harvest is probably August. If you wait any later than that and your bachelor buttons may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your bachelor buttons indoors.

Last Frost Date

On average the last frost is on May 15 in Austin. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Austin is just an average the actual date of last frost changes from year to year. Since half of the time in Austin last frost occurs after May 15 be ready to protect your bachelor buttons in the event of one of those late frosts.

USDA Zone Info for Austin

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Austin

You may be interested in your other planting guides for Austin.