Before planting it is a good idea to find your USDA Zone info to estimate 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.

In Walnut Creek you can figure out when to plant pincushion flower by referring to the USDA zone info.

Planting Calendar for Pincushion Flower

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

Pincushion Flower are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant pincushion flower in Walnut Creek 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 pincushion flower and expect a good harvest is probably October. Any later than that and your pincushion flower may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your pincushion flower indoors.

Last Frost Date

In Walnut Creek the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that USDA zone info for Walnut Creek is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Walnut Creek you get surprised by a frost after February 15 so make sure that you are ready to cover your pincushion flower in the event of a surprise late frost.

USDA Zone Info for Walnut Creek

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 Walnut Creek

You may be interested in your other planting guides for Walnut Creek.