The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant shasta daisys is to refer to the USDA zone info for Herrin.

Planting Calendar for Shasta Daisys

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

You can plant shasta daisys a little earlier in the year because they do well in moderate cold.

The earliest that you can plant shasta daisys in Herrin 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 shasta daisys and expect a good harvest is probably September. If you wait any later than that and your shasta daisys may not have a chance to really do well. If you are starting your shasta daisys indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Herrin is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Herrin there is a last frost after April 15 so always be ready to protect your shasta daisys in the event of one of those late frosts.

USDA Zone Info for Herrin

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 Herrin

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