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.

The first chance to plant brachycome in Sunnyvale should be estimated by using the USDA zone info.

Planting Calendar for Brachycome

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

Since brachycome are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant brachycome in Sunnyvale 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. You probably don't want to wait any later than that or else your brachycome may not have a chance to really do well. If you are starting your brachycome indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Sunnyvale the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Sunnyvale is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Sunnyvale last frost occurs after February 15 so make sure that you are ready to protect your brachycome if you have a late frost.

USDA Zone Info for Sunnyvale

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 Sunnyvale

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