One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's a good idea to plant periwinkles in Buena Park by checking out the USDA zone info.

Planting Calendar for Periwinkles

Frost tolerance for periwinkles:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Periwinkles are not cold tolerant which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant periwinkles in Buena Park 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 periwinkles and expect a good harvest is probably September. Any later than that and your periwinkles may not have a chance to really do well. If you are starting your periwinkles indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Buena Park. In the coldest months of winter you should expect an average low temperature of 35°F.

Since the USDA zone info for Buena Park is an average the actual date of last frost will vary from year to year. Half of the time in Buena Park it frosts late in the year after January 31 so make sure that you are ready to cover your periwinkles if you have a surprise late frost.

USDA Zone Info for Buena Park

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Buena Park

You may be interested in your other planting guides for Buena Park.