Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of getting a good idea when to plant purple bell vines is to check out the USDA zone info for Oakley.

Planting Calendar for Purple Bell Vines

Frost tolerance for purple bell vines:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Purple Bell Vines are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant purple bell vines in Oakley 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 purple bell vines and expect a good harvest is probably September. You probably don't want to wait any later than that or else your purple bell vines may not have a chance to fully mature. If you are starting your purple bell vines indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Oakley. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Oakley and it can change quite a bit from year to year. Since half of the time in Oakley you get surprised by a frost after February 15 be ready to cover your purple bell vines if you have a surprise late frost.

USDA Zone Info for Oakley

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 Oakley

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