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.

It's possible to estimate when you can plant centaurea by referring to the USDA zone info for West Plains.

Planting Calendar for Centaurea

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

Centaurea are moderately cold tolerant which tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant centaurea in West Plains 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

The average date of last frost is April 15 in West Plains. You can expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for West Plains is just an average and the actual date of last frost will vary from year to year. Half of the time in West Plains it frosts late in the year after April 15 so make sure that you are ready to cover your centaurea in the event of one of those late frosts.

USDA Zone Info for West Plains

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 West Plains

You may be interested in your other planting guides for West Plains.