Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when it's possible to plant bower vine is to examine the USDA zone info for Clearlake.

Planting Calendar for Bower Vine

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

Since bower vine are not cold tolerant it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant bower vine in Clearlake is April. However, you really should wait until May 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 August. Any later than that and your bower vine may not have a chance to really do well. Starting your bower vine indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Clearlake. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Clearlake may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Clearlake you get a frost after March 15 be ready to protect your bower vine if you have a surprise late frost.

USDA Zone Info for Clearlake

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Clearlake

You may be interested in your other planting guides for Clearlake.