One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for San Jose can be reffered to in order to figure out when to plant bower vine.

Planting Calendar for Bower Vine

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

Since bower vine require warm weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant bower vine in San Jose 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. If you wait any later than that and 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

In San Jose the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for San Jose and it will vary from year to year. Half of the time in San Jose it frosts late in the year after February 15 so always be ready to cover your bower vine in the event of a late frost.

USDA Zone Info for San Jose

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 Jose

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