The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to figure out when it's possible to plant pincushion flower by reviewing the USDA zone info for Rancho Cucamonga.

Planting Calendar for Pincushion Flower

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

Since pincushion flower do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant pincushion flower in Rancho Cucamonga 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. If you wait any later than that and your pincushion flower may not have a chance to grow to maturity. If you are starting your pincushion flower 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 Rancho Cucamonga. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Rancho Cucamonga may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Rancho Cucamonga there is a last frost after February 15 be ready to cover your pincushion flower if you have a surprise late frost.

USDA Zone Info for Rancho Cucamonga

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 Rancho Cucamonga

You may be interested in your other planting guides for Rancho Cucamonga.