The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 Grass Valley should be determined 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 all chance of frost has passed.

It's probably not a good idea to plant flowering maple until after all chance of frost has passed because they require warm weather.

The earliest that you can plant flowering maple in Grass Valley 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. You probably don't want to wait any later than that or else your flowering maple may not have a chance to grow to maturity. If you are starting your flowering maple indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Grass Valley. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Grass Valley is just an average the actual date of last frost changes from year to year. Since half of the time in Grass Valley it frosts late in the year after February 15 be ready to protect your flowering maple in the event of a late frost.

USDA Zone Info for Grass Valley

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Grass Valley

You may be interested in your other planting guides for Grass Valley.