One of the best tools that you have as gardeners to help us determine 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.

You will be able to estimate when to plant california poppy by looking at the USDA zone info for Dearborn.

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 mild cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant california poppy in Dearborn is March. However, you really should wait until April 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 August. You probably don't want to wait any later than that or else 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

The average date of last frost is April 15 in Dearborn. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Dearborn is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Dearborn you get surprised by a frost after April 15 be ready to cover your california poppy in the event of one of those late frosts.

USDA Zone Info for Dearborn

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Dearborn

You may be interested in your other planting guides for Dearborn.