One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant flowering maple in Riverside can be figured out by using 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.

Flowering Maple do not do well in cold weather which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant flowering maple in Riverside is March. However, you really should wait until April 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. If you are starting your flowering maple indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Riverside. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Riverside is an average and the actual date of last frost changes from year to year. Since half of the time in Riverside there is a last frost after February 15 be ready to cover your flowering maple if you have a surprise late frost.

USDA Zone Info for Riverside

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 Riverside

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