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.

By reviewing the USDA zone info for Santa Rosa it's possible to estimate when it's a good idea to plant blue lace flowers.

Planting Calendar for Blue Lace Flowers

Frost tolerance for blue lace flowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Blue Lace Flowers are one of those plants that can tolerate a tiny bit of cold weather which means that you can plant them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant blue lace flowers in Santa Rosa is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant blue lace flowers and expect a good harvest is probably September. Any later than that and your blue lace flowers may not have a chance to grow to maturity. Starting your blue lace flowers indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Santa Rosa is just an average the actual date of last frost is different every year. Half of the time in Santa Rosa there is a last frost after February 15 so make sure that you are ready to cover your blue lace flowers in the event of one of those late frosts.

USDA Zone Info for Santa Rosa

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 Santa Rosa

You may be interested in your other planting guides for Santa Rosa.