One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Rialto you can estimate when it's the best time to plant flowering maple by checking out the USDA zone info.

Planting Calendar for Flowering Maple

Frost tolerance for flowering maple:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant flowering maple until after the last frost when the weather gets warmer because they require warm weather.

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

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Rialto. You should expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Rialto is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Rialto there is a last frost after January 31 so be sure to be ready to cover your flowering maple in the event of one of those late frosts.

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.