One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

In Portola Valley you can estimate when to plant jasmine by checking out the USDA zone info.

Planting Calendar for Jasmine

Frost tolerance for jasmine:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since jasmine do not do well in cold weather it is important to wait until after the last frost before you can plant them.

The earliest that you can plant jasmine in Portola Valley 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 jasmine and expect a good harvest is probably September. If you wait any later than that and your jasmine may not have a chance to fully mature. You can get started a few weeks earlier by starting your jasmine indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Portola Valley. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for Portola Valley is just an average the actual date of last frost changes from year to year. Half of the time in Portola Valley last frost occurs after January 31 so be sure to be ready to protect your jasmine if you have a late frost.

USDA Zone Info for Portola Valley

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Portola Valley

You may be interested in your other planting guides for Portola Valley.