One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when to plant brachycome by using the USDA zone info for Worthington.

Planting Calendar for Brachycome

Frost tolerance for brachycome:	Not tolerant of frost.
When to plant:	After the last frost.

It's not a good idea to plant brachycome until after all chance of frost has passed because they are not cold tolerant.

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

The last month that you can plant brachycome and expect a good harvest is probably August. Any later than that and your brachycome may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your brachycome indoors.

Last Frost Date

The average date of last frost is May 15 in Worthington. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Worthington is not always accurate the actual date of last frost will vary from year to year. Half of the time in Worthington it frosts late in the year after May 15 so just be sure to be ready to protect your brachycome in the event of a surprise late frost.

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.