One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when you can plant lunaria by checking out the USDA zone info for Campbell.

Planting Calendar for Lunaria

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

Lunaria are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant lunaria in Campbell 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 lunaria and expect a good harvest is probably October. You probably don't want to wait any later than that or else your lunaria may not have a chance to fully mature. Starting your lunaria indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on February 15 in Campbell. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Campbell is just an average the actual date of last frost is different every year. Since half of the time in Campbell last frost occurs after February 15 be ready to protect your lunaria in the event of a surprise late frost.

USDA Zone Info for Campbell

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Campbell

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