One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's possible to plant centaurea is to look at the USDA zone info for Wauseon.

Planting Calendar for Centaurea

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

You can plant centaurea a little earlier in the year because they are moderately cold tolerant.

The earliest that you can plant centaurea in Wauseon 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 centaurea and expect a good harvest is probably September. If you wait any later than that and your centaurea may not have a chance to fully mature. If you are starting your centaurea indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Wauseon. You should expect an average low temperature of -10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Wauseon may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Wauseon there is a last frost after April 15 be ready to protect your centaurea in the event of a surprise late frost.

USDA Zone Info for Wauseon

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Wauseon

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