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 common way of determining when it's possible to plant borage is to examine the USDA zone info for Pleasant Hill.

Planting Calendar for Borage

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

You can plant borage a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant borage in Pleasant Hill 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 borage and expect a good harvest is probably October. Any later than that and your borage may not have a chance to fully mature. You can get started a few weeks earlier by starting your borage indoors.

Last Frost Date

The average date of last frost is February 15 in Pleasant Hill. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Pleasant Hill is just an average and the actual date of last frost will vary from year to year. Since half of the time in Pleasant Hill last frost occurs after February 15 be ready to protect your borage if you have a surprise late frost.

USDA Zone Info for Pleasant Hill

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 Pleasant Hill

You may be interested in your other planting guides for Pleasant Hill.