One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

The best time to plant california poppy in Chino Hills should be figured out by using the USDA zone info.

Planting Calendar for California Poppy

Frost tolerance for california poppy:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

California Poppy do ok in very little cold which tells us that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant california poppy in Chino Hills 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 california poppy and expect a good harvest is probably September. If you wait any later than that and your california poppy may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your california poppy indoors.

Last Frost Date

In Chino Hills the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for Chino Hills is not always accurate and the actual date of last frost is different every year. Since half of the time in Chino Hills last frost occurs after January 31 be ready to cover your california poppy if you have a surprise late frost.

USDA Zone Info for Chino Hills

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Chino Hills

You may be interested in your other planting guides for Chino Hills.