One of the first steps you take when you are figuring out 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.

It's a good idea to figure out when you can plant vinca vine by referring to the USDA zone info for Williams.

Planting Calendar for Vinca Vine

Frost tolerance for vinca vine:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant vinca vine a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant vinca vine in Williams is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant vinca vine and expect a good harvest is probably October. If you wait any later than that and your vinca vine may not have a chance to fully mature. Starting your vinca vine indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Williams the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Williams is just an average and the actual date of last frost will vary from year to year. Since half of the time in Williams you get surprised by a frost after February 15 be ready to protect your vinca vine in the event of one of those late frosts.

USDA Zone Info for Williams

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 Williams

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