The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when it's the best time to plant brachycome by using the USDA zone info for Smithfield.

Planting Calendar for Brachycome

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

You can not plant brachycome until after the last frost because they are not cold tolerant.

The earliest that you can plant brachycome in Smithfield 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. You probably don't want to wait any later than that or else your brachycome may not have a chance to really do well. Starting your brachycome indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Smithfield. You can expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that USDA zone info for Smithfield is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Smithfield last frost occurs after March 15 so make sure that you are prepared to cover your brachycome if you have a late frost.

USDA Zone Info for Smithfield

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Smithfield

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