Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to figure out when you can plant sweet woodruff by looking at the USDA zone info for Los Altos.

Planting Calendar for Sweet Woodruff

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

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

The earliest that you can plant sweet woodruff in Los Altos 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 sweet woodruff and expect a good harvest is probably October. Any later than that and your sweet woodruff may not have a chance to really do well. You can get started a few weeks earlier by starting your sweet woodruff indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Los Altos. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Los Altos is just an average the actual date of last frost changes from year to year. Since half of the time in Los Altos there is a last frost after February 15 be ready to cover your sweet woodruff in the event of a late frost.

USDA Zone Info for Los Altos

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 Los Altos

You may be interested in your other planting guides for Los Altos.