One of the first steps you take when you are determining 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.

One way of getting a good idea when you can plant bower vine is to refer to the USDA zone info for San Ramon.

Planting Calendar for Bower Vine

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

Bower Vine are not cold tolerant which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant bower vine in San Ramon is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bower vine and expect a good harvest is probably September. You probably don't want to wait any later than that or else your bower vine may not have a chance to really do well. You can get started a few weeks earlier by starting your bower vine indoors.

Last Frost Date

On average the last frost is on February 15 in San Ramon. You should expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for San Ramon may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in San Ramon there is a last frost after February 15 be ready to cover your bower vine if you have a late frost.

USDA Zone Info for San Ramon

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 San Ramon

You may be interested in your other planting guides for San Ramon.