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.

The USDA zone info for Chula Vista should be read to determine when it's possible to plant lunaria.

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 tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant lunaria in Chula Vista 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. If you wait any later than that and your lunaria may not have a chance to fully mature. You can get started a few weeks earlier by starting your lunaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Chula Vista. You can expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Chula Vista is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Chula Vista it frosts late in the year after January 31 so make sure that you are prepared to cover your lunaria if you have a late frost.

USDA Zone Info for Chula Vista

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Chula Vista

You may be interested in your other planting guides for Chula Vista.