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.

In Dearborn Heights you can estimate when it's possible to plant centaurea by using the USDA zone info.

Planting Calendar for Centaurea

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

Centaurea do ok in some cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant centaurea in Dearborn Heights 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. You probably don't want to wait any later than that or else your centaurea may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your centaurea indoors.

Last Frost Date

In Dearborn Heights the average date of last frost happens on April 15. You can expect an average low temperature of -10°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Dearborn Heights and it will vary from year to year. Half of the time in Dearborn Heights last frost occurs after April 15 so make sure that you are ready to cover your centaurea if you have a late frost.

USDA Zone Info for Dearborn Heights

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 Dearborn Heights

You may be interested in your other planting guides for Dearborn Heights.