Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Oshkosh can be reviewed to determine 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.

You can plant bachelor buttons a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant bachelor buttons in Oshkosh is February. However, you really should wait until March 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 September. You probably don't want to wait any later than that or else your bachelor buttons may not have a chance to fully mature. You can get started a little bit earlier by starting your bachelor buttons indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Oshkosh. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Oshkosh is not always accurate the actual date of last frost is different every year. Half of the time in Oshkosh it frosts late in the year after April 15 so just be sure to be ready to cover your bachelor buttons in the event of a late frost.

USDA Zone Info for Oshkosh

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oshkosh

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