Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of estimating when you can plant lobelia is to examine the USDA zone info for Yucaipa.

Planting Calendar for Lobelia

Frost tolerance for lobelia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Lobelia do well in cold which tells us that you can start planting them much earlier than other plants that might not handle the cold.

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

Last Frost Date

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

Remember that USDA zone info for Yucaipa is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Yucaipa you get a frost after February 15 be ready to cover your lobelia if you have a late frost.

USDA Zone Info for Yucaipa

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 Yucaipa

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