One of the best tools that you have as gardeners to help us determine 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.

By referring to the USDA zone info for Osage Beach you will be able to estimate when it's the best time to plant centaurea.

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 mild cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant centaurea in Osage Beach 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. Any later than that and 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

On average the last frost has passed is on April 15 in Osage Beach. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Osage Beach is not always accurate the actual date of last frost will vary from year to year. Half of the time in Osage Beach you get surprised by a frost after April 15 so always be ready to cover your centaurea if you have a surprise late frost.

USDA Zone Info for Osage Beach

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Osage Beach

You may be interested in your other planting guides for Osage Beach.