One of the first steps you take when you are figuring out 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.

The USDA zone info for Napa should be reffered to in order to estimate when to plant brachycome.

Planting Calendar for Brachycome

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

Brachycome require warm weather which tells us that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant brachycome in Napa 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 brachycome and expect a good harvest is probably September. Any later than that and your brachycome may not have a chance to really do well. Starting your brachycome indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Napa. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Napa is not always accurate the actual date of last frost will vary from year to year. Half of the time in Napa there is a last frost after February 15 so be sure to be ready to cover your brachycome in the event of one of those late frosts.

USDA Zone Info for Napa

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Napa

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