One of the best tools that you have as gardeners to help us determine 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 can determine when it's the best time to plant lantana in Rialto by checking out the USDA zone info.

Planting Calendar for Lantana

Frost tolerance for lantana:	Not tolerant of frost.
When to plant:	After the last frost.

Since lantana are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant lantana in Rialto is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant lantana and expect a good harvest is probably September. Any later than that and your lantana may not have a chance to really do well. You can get started a little bit earlier by starting your lantana indoors.

Last Frost Date

On average the last frost is on January 31 in Rialto. In the coldest months of winter you can expect an average low temperature of 30°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Rialto and it is different every year. Half of the time in Rialto it frosts late in the year after January 31 so make sure that you are prepared to protect your lantana if you have a late frost.

USDA Zone Info for Rialto

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 Rialto

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