One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's possible to plant sweetscented bedstraw by looking at the USDA zone info for Santa Rosa.

Planting Calendar for Sweetscented Bedstraw

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

Sweetscented Bedstraw do well in a tiny bit of cold which tells us that you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant sweetscented bedstraw 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 sweetscented bedstraw and expect a good harvest is probably September. Any later than that and your sweetscented bedstraw may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your sweetscented bedstraw indoors.

Last Frost Date

In Santa Rosa the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

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 it frosts late in the year after February 15 so always be ready to cover your sweetscented bedstraw if you have a surprise late frost.

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.