One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. 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 roses in Sunnyvale can be estimated by checking out the USDA zone info.

Planting Calendar for Roses

Frost tolerance for roses:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant roses a little earlier in the year because they do well in moderate cold.

The earliest that you can plant roses in Sunnyvale is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant roses and expect a good harvest is probably October. Any later than that and your roses may not have a chance to really do well. You can get started a couple of weeks earlier by starting your roses indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Sunnyvale is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Sunnyvale you get a frost after February 15 be ready to protect your roses if you have a surprise 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.