One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when it's the best time to plant bidens by checking out the USDA zone info for Reedsburg.

Planting Calendar for Bidens

Frost tolerance for bidens:	Not tolerant of frost.
When to plant:	After the last frost.

Since bidens do not do well in cold weather you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant bidens in Reedsburg is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant bidens and expect a good harvest is probably August. If you wait any later than that and your bidens may not have a chance to fully mature. You can get started a little bit earlier by starting your bidens indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Reedsburg. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Reedsburg is just an average the actual date of last frost changes from year to year. Half of the time in Reedsburg you get a frost after April 15 so make sure that you are prepared to cover your bidens if you have a surprise late frost.

USDA Zone Info for Reedsburg

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 Reedsburg

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