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

You can estimate when it's a good idea to plant chamomile in Worthington by reviewing the USDA zone info.

Planting Calendar for Chamomile

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

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

The earliest that you can plant chamomile in Worthington is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant chamomile and expect a good harvest is probably August. You probably don't want to wait any later than that or else your chamomile may not have a chance to grow to maturity. Starting your chamomile indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Worthington the average date of last frost happens on May 15. You should expect an average low temperature of -25°F in the coldest months of winter.

It's important to remember that USDA zone info for Worthington is an average and the actual date of last frost changes from year to year. Since half of the time in Worthington last frost occurs after May 15 be ready to protect your chamomile in the event of one of those late frosts.

USDA Zone Info for Worthington

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Worthington

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