One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Hillsdale you can estimate when it's possible to plant california poppy by checking out 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 are barely cold tolerant which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant california poppy in Hillsdale 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. Any later than that and your california poppy may not have a chance to really do well. Starting your california poppy indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Hillsdale. In the coldest months of winter you can expect an average low temperature of 0°F.

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

USDA Zone Info for Hillsdale

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Hillsdale

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