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.

In Wasco you can determine when it's the best time to plant bower vine by referring to the USDA zone info.

Planting Calendar for Bower Vine

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

You can not plant bower vine until after the last frost because they require warm weather.

The earliest that you can plant bower vine in Wasco 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. Any later than that and your bower vine may not have a chance to fully mature. You can get started a few weeks earlier by starting your bower vine indoors.

Last Frost Date

The average date of last frost is February 15 in Wasco. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Wasco and it will vary from year to year. Half of the time in Wasco there is a last frost after February 15 so make sure that you are prepared to protect your bower vine in the event of a surprise late frost.

USDA Zone Info for Wasco

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Wasco

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