One of the best tools that you have as gardeners to help us figure out 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 USDA zone info for Frederick can be reffered to in order to estimate when it's a good idea to plant california poppy.

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 are barely cold tolerant which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant california poppy in Frederick 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 really do well. 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 Frederick. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Frederick is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Frederick it frosts late in the year after April 15 be ready to protect your california poppy if you have a surprise late frost.

USDA Zone Info for Frederick

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Frederick

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