Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Somerdale can be reviewed to estimate when 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 well in moderate cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant centaurea in Somerdale 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. You can get started a few weeks earlier by starting your centaurea indoors.

Last Frost Date

The average date of last frost is April 15 in Somerdale. You should expect an average low temperature of 0°F in the coldest months of winter.

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

USDA Zone Info for Somerdale

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Somerdale

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