The USDA Zone info is a great tool for gardeners to help us determine your gardening 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 Stone Park should be looked at to determine when to plant brachycome.

Planting Calendar for Brachycome

Frost tolerance for brachycome:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant brachycome until after the last frost because they do not do well in cold weather.

The earliest that you can plant brachycome in Stone Park is April. However, you really should wait until May 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. If you wait any later than that and your brachycome may not have a chance to grow to maturity. If you are starting your brachycome indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Stone Park the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Stone Park is an average the actual date of last frost changes from year to year. Since half of the time in Stone Park last frost occurs after April 15 be ready to protect your brachycome if you have one of those late frosts.

USDA Zone Info for Stone Park

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Stone Park

You may be interested in your other planting guides for Stone Park.