One of the first steps you take when you are estimating your gardening schedule is find your 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 first opportunity to plant matricaria in Imperial can be figured out by referring to the USDA zone info.

Planting Calendar for Matricaria

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

Matricaria do well in moderate cold which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant matricaria in Imperial 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 matricaria and expect a good harvest is probably October. If you wait any later than that and your matricaria may not have a chance to fully mature. You can get started a few weeks earlier by starting your matricaria indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Imperial. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Imperial is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Imperial there is a last frost after January 31 so always be ready to protect your matricaria in the event of a late frost.

USDA Zone Info for Imperial

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 Imperial

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